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Ch. 2 Forces Review Flashcards | StudBud
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Ch. 2 Forces Review
Ch. 2 Forces Review
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review of Chapter 2 on Forces #force #newton
Flashcards
26 cards
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Questions
26
Answers
1
TRUE or FALSE: Friction causes objects to move faster
False
True
2
TRUE or FALSE: Unbalanced forces change an object's motion.
True
False
3
What two factors affect the gravitational force between two objects?
Mass and Distance
Gravity and Distance
Mass and Weight
Gravity and Weight
4
What unit do we measure forces in?
kg
N
m/s
m/s2
5
TRUE or FALSE: The force of gravity becomes stronger when objects are far apart
False
True
6
TRUE or FALSE: Inertia depends on mass
False
True
7
The measure of the amount of matter in an object is the object's
weight
velocity
mass
force
8
Momentum depends on mass and
velocity
force
acceleration
weight
9
Newton's third law says every action has a reaction that is equal and opposite, meaning
forces come in pairs
all forces act in the opposite direction of motion
forces do not act on moving objects
inertia doesn't' exist
10
TRUE or FALSE: Acceleration depends on mass and force.
True
False
11
Which of Newton's Laws says an action force creates and equal and opposite reaction force?
1st Law
3rd Law
4th Law
2nd Law
12
What force always works to oppose motion between two surfaces?
Inertia
Normal
Gravity
Friction
13
What does the Law of Conservation of Momentum tell us about the momentum in a collision?
It Decreases
It Increases
It Will Hurt
It Stays The Same
14
What type of friction is shown in the following picture?
Fluid
Rolling
Sliding
Static
15
When forces acting on an object are balanced, the object will...
not move at all
move quickly
move slowly
float
16
Which of Newton's Laws says the force on an object is equal to its mass times acceleration?
2nd Law
3rd Law
1st Law
4th Law
17
When gravity is the only force acting on an object, it is in...
Collisions
Inertia
Forces
Free Fall
18
Which formula is correct for calculating an object's momentum?
mass x force
momentum = mass / velocity
momentum = mass / force
Momentum = mass x velocity
19
Which kind of forces cause an objects' motion to change?
Unbalanced forces
Balanced forces
20
A force is described by
energy
its direction only
its strength only
both strength and direction
21
Air resistance acts in which direction on a falling object?
upward
downward
22
Which of Newton's Laws says objects in motion will continue in motion unless acted on by force?
4th Law
3rd Law
1st Law
2nd Law
23
In physics, what word describes a "push or pull" on an object?
Force
Gravity
Friction
Free Fall
24
Which type of friction is shown in the picture?
Sliding
Fluid
Static
Rolling
25
Friction between two objects that are not moving is...
static friction
fluid friction
rolling friction
sliding friction
26
What do we call the downward force of gravity on an object's mass?
Weight
Gravity
Inertia
Mass
