Motion 1
Motion Potion
Newton's Laws
Force, Work, and Power
Review More
100
The formula for speed.
Speed = distance / time
100
What is the difference between speed and velocity?
Velocity has a direction.
100
What two pieces of information do you need to determine force?
mass and acceleration
100
The red arrow and the blue arrow both represent 40N.
A: What is the net force?
B: Will there be acceleration?
C: Are the forces balanced?
No net force
No acceleration
Yes, the forces are balanced
100
Does mass change based on where you are?
No, mass is the amount of matter in an object.
200
A car travels 40 miles in 2 hours. What is the speed of the car?
20 mi/hr
200
An object travels at a constant speed around a circular track. Is the object's velocity changing?
Yes, because the direction is changing. 
200
As a train stops, the people on the train continue to move or lean forward for a few more seconds. Give a word to describe this OR one of Newton's Laws.
inertia
Newton's 1st Law
200
Tina applies a force of 12 N to move a piece of furniture 10 meters. How much work did Tina complete?
120 J
200
Zyed has a mass of 55kg. Planet A has more gravity than Planet B. Will Zyed weigh more on planet A?
Yes, weight is a measure of gravity pulling on an object.
300
What does the flat line represent?
The object is not moving.
300
Joe walks at a pace of 2mi/hr. If Joe leaves at 1:00, how far from home will he be at 2:00?
2 mi
300
An object will stay in motion until acted on by an outside force? Which of Newton's Laws does this describe OR what word describes this situation.
inertia
Newton's 1st Law
300
If Zayda completed 10 J of work in 2 seconds, what is her power?
5
300
Simple machines are not perfect. The amount of work you put in to them is often less than the work output. Why is this?
Simple machines have areas of friction where energy is lost as heat.
400
How many miles did the car travel in the first hour?
40 miles
400
Jules rides his bike with a speed of 5 mi/hr. What piece of information would tell us his velocity?
direction
400
Object A is 10kg. Object B is 20kg. If the same force is applied to both of these objects, which one will accelerate fastest?
F=m x a
The 10kg object will accelerate the fastest because it has less mass.
400
Jane and Zayda both push a piece of furniture with 15N of force over 10 meters. Zayda does it twice as fast.
A: Did both Jane and Zayda do the same amount of work?
B: Who has more power?
Jane and Zayda both did 150 J of work.
Zayda did it in half the time, so she has more power.
400
A: Which object is traveling the fastest?
B: Are the objects traveling at a constant speed?
A: Object A is moving fastest
B: Both objects are traveling at a constant speed.
500
Is this object traveling at a constant speed?
No, the speed changed around hour 4.
500
What is missing from the following acceleration formula?
(final velocity - initial velocity) / ?
time
500
Zoe pushes on a desk with a force of 20 N. With what force does the desk push back on Zoe?
20N
500
A builder pushes large tool box east with a force of 20N. If the force of friction is 25 N, will the box move?
What is the direction of the force of friction?
No, the box will not move because friction is too great.
Friction is in the opposite direction (west).
500
Describe the difference between mass and weight.
Include "gravity" and "matter" in your answer.
Mass is the amount of matter in an object.
Weight is a measure of gravity pulling on a mass.