Whiteboarding Newton's 2nd Law
Elevator and Skydiver Problems
Atwood Machine Lab
*This lab requires the hanging pulley, cups, string, stand, the black hanging masses and the .1 kg disc masses.
*Students should place something soft on the ground upon which the cup can land.
*Smaller cups will reduce the likelihood of a collision as they pass one another.
*Students should place something soft on the ground upon which the cup can land.
*Smaller cups will reduce the likelihood of a collision as they pass one another.
Modified Atwood Machine Labs
(aka Cart, Pulley, & Hanging Mass Labs)
*An empty pasco cart has mass .260 kg
*Labs 2-4 are for AP classes only.
*Students solve for tension in Lab 2.
*For Lab 2 students should only collect 4 data points. The cart begins to accelerate too quickly past 4 trials.
*For Lab 2 students should only collect 4 data points. The cart begins to accelerate too quickly past 4 trials.
*For lab 3 lay the gray track diagonally across the table or counter so it does not tip over.
*For lab 4 be certain to first zero out the force sensor and lay the gray track diagonally across the table or counter so it does not tip over.
Individual Rocket Activity - Combines Newton's Laws and Kinematics
You must verify your numeric answers to parts C and G to receive credit.
kinematics_individual_activity.pdf | |
File Size: | 223 kb |
File Type: |
Superman Kinematics and Force Problem
Vin Diesel Kinematics and Force Problem
Green Goblin Activity
*Good introduction to accelerating pulley systems. Hero's Choice:
Start movie clip at 1:15:
Fan Cart Friction Lab
Lunar Lander Lab
(aka Propulsive Landing Lab)
Objectives:
1. Students will apply the kinematic equations.
2. Students will correctly apply Newton's Laws.
3. Students will correctly use vector direction in Newton's Second Law.
4. Students will use literal equations to solve for the mass of the lunar module.
1. Students will apply the kinematic equations.
2. Students will correctly apply Newton's Laws.
3. Students will correctly use vector direction in Newton's Second Law.
4. Students will use literal equations to solve for the mass of the lunar module.
Part 1 Instructions:
Download on your computer and then open the Lunar Lander Simulation. Practice your propulsive landing skills. The sound should be turned off. It is possible to achieve a landing speed of .0 m/s, though few students have done so. Find out if you are one of the few! You will not be penalized if you are unable to achieve the .0 m/s landing speed.
When you have achieved a soft landing, take a screen shot of the results and submit it to CANVAS. Take a screen shot by hitting the Ctrl, Alt, Print Screen buttons at the same time; this will save your screen shot as a photo which you may paste into a word document. When you have finished Day 1, you may begin Part 2 of the Lunar Lander Lab.
Part 2 Instructions:
Complete the Lunar Lander Lab WS. You do NOT need to complete the projectile motion extension section at the end. LM stands for lunar module.
Download on your computer and then open the Lunar Lander Simulation. Practice your propulsive landing skills. The sound should be turned off. It is possible to achieve a landing speed of .0 m/s, though few students have done so. Find out if you are one of the few! You will not be penalized if you are unable to achieve the .0 m/s landing speed.
When you have achieved a soft landing, take a screen shot of the results and submit it to CANVAS. Take a screen shot by hitting the Ctrl, Alt, Print Screen buttons at the same time; this will save your screen shot as a photo which you may paste into a word document. When you have finished Day 1, you may begin Part 2 of the Lunar Lander Lab.
Part 2 Instructions:
Complete the Lunar Lander Lab WS. You do NOT need to complete the projectile motion extension section at the end. LM stands for lunar module.
Hints:
For Parts a and b use the time independent kinematic equation to solve for acceleration--the simulation will give you initial velocity (begin at rest), final velocity (impact velocity), and distance (altitude). You will need to turn the lunar lander upside down and crash it into the moon at constant maximum thrust to solve for maximum acceleration on part b. You can pause the simulation to turn the LM upside down and turn on the thrusters.
For part c you will need to use literal equations to create an equation for mass 'm' based on the information provided in the simulation. To calculate net force you will add thrust force and force gravity which are pointed in the same direction, downward, from the scenario in part b. Your overall acceleration is also pointed downward. Be careful with the signs you place on your accelerations and forces. Force thrust, force gravity and overall acceleration are all negative! Force gravity on the moon is equal to mass in kg multiplied by the acceleration of gravity on the moon, which you solved for on part a (i.e. Force Gravity = mg).
Literal equation steps needed to solve for mass on part c:
Net Force = ma
Force Thrust + Force Gravity = ma
Force Thrust + mg = ma
-mg -mg
Force Thrust = ma - mg
Force Thrust = m(a - g)
m = (Force Thrust)/(a - g)
*Force Thrust, a and g will all be negative numbers
For Parts a and b use the time independent kinematic equation to solve for acceleration--the simulation will give you initial velocity (begin at rest), final velocity (impact velocity), and distance (altitude). You will need to turn the lunar lander upside down and crash it into the moon at constant maximum thrust to solve for maximum acceleration on part b. You can pause the simulation to turn the LM upside down and turn on the thrusters.
For part c you will need to use literal equations to create an equation for mass 'm' based on the information provided in the simulation. To calculate net force you will add thrust force and force gravity which are pointed in the same direction, downward, from the scenario in part b. Your overall acceleration is also pointed downward. Be careful with the signs you place on your accelerations and forces. Force thrust, force gravity and overall acceleration are all negative! Force gravity on the moon is equal to mass in kg multiplied by the acceleration of gravity on the moon, which you solved for on part a (i.e. Force Gravity = mg).
Literal equation steps needed to solve for mass on part c:
Net Force = ma
Force Thrust + Force Gravity = ma
Force Thrust + mg = ma
-mg -mg
Force Thrust = ma - mg
Force Thrust = m(a - g)
m = (Force Thrust)/(a - g)
*Force Thrust, a and g will all be negative numbers
Force and Motion Basics Lab
This simulation runs on ipad.
WS 1 emphasizes that net force is the sum of all forces.
WS 2 emphasizes the two types of friction.
WS 1 emphasizes that net force is the sum of all forces.
WS 2 emphasizes the two types of friction.
a = adult, t = teenager, c = child
*Use the same magnitude of force for Part II b. You choose the force; it must accelerate the objects.
Force and Motion with Friction
Forces in 1D Simulation Labs
First Row Approximate Magnitudes: Force Applied = 590 N, Static Friction = 590 N, Kinetic Friction = 390 N, Force Normal = 2000 N, Force Gravity = 2000 N, Coef. Kinetic Friction = .19 or .2, Accel = 1 m/s/s
*Do not change the coefficient of friction settings.
*In some circumstances, the kinetic coefficient of friction is the SAME as the static coefficient of friction.
*Do not change the coefficient of friction settings.
*In some circumstances, the kinetic coefficient of friction is the SAME as the static coefficient of friction.
The force kinetic friction can be found on the force graphs page when the object is sliding.
Use the maximum static friction value (aka the threshold applied/push force required to get the object moving) subtracted by the kinetic friction to calculate net force. Divide net force by mass to calculate acceleration. See the photo below for details:
Use the maximum static friction value (aka the threshold applied/push force required to get the object moving) subtracted by the kinetic friction to calculate net force. Divide net force by mass to calculate acceleration. See the photo below for details:
*'Push the File Cabinet WS 1' and 'Friction on Different Planets WS' are higher priority labs.
*Non-essential labs.
Friction Introduction Lab
Coffee Filter Lab
Elevator Lab (Use the Spring Scales and 1kg Weights)
Coefficient of Kinetic Friction Lab
materials: two surfaces (the table top counts as one of the surfaces), wood block with a hook, force sensor, lab quest, masses
*Use the labquest force sensor to measure force pull.
*Include the wood block as part of the total mass.
*Be certain that you are pulling the force sensor parallel to the ground and NOT at an angle.
*Make certain to 'zero' the force sensor on the lab quest before collecting data.
*You may use other masses besides 1 or 2 Kg, but use at least .5 kg for each trail.
*You may work in groups of up to 5 people to collect the data, but turn in your own work.
*'W' stands for weight which is the same as force gravity.
*Tolerance for error should be within .1 of the coefficient of friction.
Complete the homework assignments on CANVAS if you finish early.
*Use the labquest force sensor to measure force pull.
*Include the wood block as part of the total mass.
*Be certain that you are pulling the force sensor parallel to the ground and NOT at an angle.
*Make certain to 'zero' the force sensor on the lab quest before collecting data.
*You may use other masses besides 1 or 2 Kg, but use at least .5 kg for each trail.
*You may work in groups of up to 5 people to collect the data, but turn in your own work.
*'W' stands for weight which is the same as force gravity.
*Tolerance for error should be within .1 of the coefficient of friction.
Complete the homework assignments on CANVAS if you finish early.
Coefficient of Drag (Automobiles)
Air Bag Lesson: Distance and Acceleration
High Dive Belly Flop Worksheet: A2 Page 21
Demonstrations of Newton's 3rd Law
Sailboat Physics Lab
1. Can sailboats travel faster than the wind?
2. Can sailboats travel into the wind?
Force Vectors on a boat sailing into the Wind
Hint for Question 2
Water Bottle Rockets
Unknown Masses Lab
*Create your own tension force lab using an unknown hanging mass, string, tape, stands, protractors, and spring scales.
Inertia Demos
Equilibrium Hanging Paper Clips Lab
Rocket Powered Boat
*Must be created from repurposed materials.
Rocket Powered Car
*Must be created from repurposed materials.
PhET Hooke's Law Lab
Hooke's Law Lab 1
*DO NOT OVER STRETCH THE SRPINGS!
*There is a third blank page on which students can create their graph and answer the questions.
*There is a third blank page on which students can create their graph and answer the questions.
Hypothesis: Net Force on a spring is directly proportional to change in length of a Hooke's Law spring.
Hypothesis Test: If the scatter plot of Net Force (y-axis) and change in spring length (x-axis) has a linear relationship that passes through the origin, net force is directly proportional to the change in spring length.
Materials: two springs, 6 .1kg masses, cup, 2 paperclips, meter stick, graph paper, metal stand, graphing calculator or online regression applet
Procedure: Hang the spring from a metal stand using a paperclip. Use another paperclip to create a hanging repository (i.e. cup) for the masses. Measure the length of your spring with 0 net force being applied--this will act as a reference for calculating change in length. Add .1 kg masses one by one and measure the new length of the spring. To calculate the change in length, subtract the original spring length. Add up to .6 kg; do not add more than .6 or the spring may loose its elasticity. Record your data in a table. Repeat these procedures for a second spring (replication).
Results: Create a scatter plot with net force on the y-axis and change in spring length on the x-axis--separate ones for each spring. Draw (or use your calculator) to fit a straight line through the points for both scatter plots. Restate the hypothesis. Answer the following questions in your write up. Does the data support the lab hypothesis? What is the significance of the slope of the best fit line? What is the unit of the slope? What are some potential sources of error in your data?
Hypothesis Test: If the scatter plot of Net Force (y-axis) and change in spring length (x-axis) has a linear relationship that passes through the origin, net force is directly proportional to the change in spring length.
Materials: two springs, 6 .1kg masses, cup, 2 paperclips, meter stick, graph paper, metal stand, graphing calculator or online regression applet
Procedure: Hang the spring from a metal stand using a paperclip. Use another paperclip to create a hanging repository (i.e. cup) for the masses. Measure the length of your spring with 0 net force being applied--this will act as a reference for calculating change in length. Add .1 kg masses one by one and measure the new length of the spring. To calculate the change in length, subtract the original spring length. Add up to .6 kg; do not add more than .6 or the spring may loose its elasticity. Record your data in a table. Repeat these procedures for a second spring (replication).
Results: Create a scatter plot with net force on the y-axis and change in spring length on the x-axis--separate ones for each spring. Draw (or use your calculator) to fit a straight line through the points for both scatter plots. Restate the hypothesis. Answer the following questions in your write up. Does the data support the lab hypothesis? What is the significance of the slope of the best fit line? What is the unit of the slope? What are some potential sources of error in your data?
Helicopter Tension Activity
Helicopter Construction Instructions
Braking Individual Activity
Create your own Pulley Problem with a Solution
Instructions:
1. Must be written legible or typed on two separate pieces of paper, one for the problem and the other for the detailed solution.
2. You must include a sketch of the scenario.
3. The pulley problem must include the following: three separated masses connected by at least two strings, at least one pulley, and at least one friction force.
4. g = 10 m/s/s
5. In the problem you must provide variables as well as numbers to represent physical quantities (e.g. mass, coefficient of friction, etc...)
6. You must ask for force diagrams, a literal equation for the system acceleration, and an equation for tension.
7. The final questions on your problem should be to calculate the numeric answers for acceleration and tensions.
8. The system must have a non-zero acceleration.
1. Must be written legible or typed on two separate pieces of paper, one for the problem and the other for the detailed solution.
2. You must include a sketch of the scenario.
3. The pulley problem must include the following: three separated masses connected by at least two strings, at least one pulley, and at least one friction force.
4. g = 10 m/s/s
5. In the problem you must provide variables as well as numbers to represent physical quantities (e.g. mass, coefficient of friction, etc...)
6. You must ask for force diagrams, a literal equation for the system acceleration, and an equation for tension.
7. The final questions on your problem should be to calculate the numeric answers for acceleration and tensions.
8. The system must have a non-zero acceleration.