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Motion Review
Motion Review
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Review of on Forces, Newtons Laws
Flashcards
20 cards
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Questions
20
Answers
1
What do we call the force that causes objects to travel in a circle?
Normal Force
Centripetal Force
Unbalanced Force
Balanced Force
2
What is the momentum of a 6 kg ball rolling 3 m/s to the west?
2 kg * m/s
2 kg * m/s west
18 kg * m/s
18 kg * m/s west
3
What is the known value of gravity on Earth?
37 m/s2
8.9 m/s2
3.7 m/s2
9.8 m/s2
4
In physics, what word describes a "push or pull" on an object?
Force
Gravity
Friction
Free Fall
5
A shark traveled 300km. It was traveling from 6:00-9:00 p.m. What was its average speed?
300 km/hr
900 km/hr
100 km/hr
150 km/hr
6
Which of Newton's Laws says an action force creates and equal and opposite reaction force?
4th Law
3rd Law
1st Law
2nd Law
7
Person A runs 5,000 m in 50 minutes. Person B runs 5,000 m in 80 minutes. Person A has MORE....
Work
Power
8
What unit do we measure forces in?
N
m/s
m/s2
kg
9
If a 48,000 N force causes a vehicle to accelerate 2 m/s
2
, what is the mass of the vehicle?
96 kg
96,000 kg
24,000 kg
24 kg
10
What is the net force acting on the red box? Include Direction!!
15N
2N Right
8N
2N Left
11
What type of motion occurs when an object accelerates downward due to gravity?
Collisions
Forces
Inertia
Free Fall
12
What does the Law of Conservation of Momentum tell us about the momentum in a collision?
It Stays The Same
It Increases
It Will Hurt
It Decreases
13
Which of Newton's Laws says objects in motion will continue in motion unless acted on by force?
3rd Law
2nd Law
1st Law
4th Law
14
If a 45N force is applied to a 3kg ball, how fast will it accelerate?
42 m/s2
48 m/s2
135 m/s2
15 m/s2
15
What is the formula for acceleration?
Change in speed divided by time
Change in distance multiplied by time
Change in distance divided by time
Change in speed multiplied by time
16
Which of Newton's Laws says the force on an object is equal to its mass times acceleration?
1st Law
4th Law
3rd Law
2nd Law
17
Which formula is correct for calculating an object's momentum?
p = m + v
m * v = p
p = m / v
M = m * v
18
What do we call the downward force of gravity on an object's mass?
Weight
Mass
Gravity
Inertia
19
What force always works against motion? It also brings all things on earth eventually to a STOP
Normal
Inertia
Gravity
Friction
20
What two factors affect the gravitational force between two objects?
Gravity and Weight
Mass and Weight
Mass and Distance
Gravity and Distance
