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Review #2 - Semester 2 Final: Velocity and Newton's Laws

Total questions: 45

Worksheet time: 26mins

Name
Class
Date
1.
Velocity is...
a)
distance over time
b)
distance over time with direction
c)
change in direction
d)
change in speed and direction
2.

The car began the race at 10 m/s, after 5 seconds, it was moving at 60 m/s. What was its acceleration?

a)

14 m/s2

b)

6.5 m/s2

c)

10 m/s2

d)

2 m/s2

3.

After Joe saw the police car, he slowed from 80 mi/hr down to 50 mi/hr. If it took him 5 seconds to slow down, what was his acceleration?

a)

26 m/s2

b)

-6 m/s2

c)

6 m/s2

d)

16 m/s2

4.

What does it mean if acceleration is negative?

a)

object is speeding up

b)

object is slowing down

c)

object is going in a circle

d)

object has a constant velocity

5.

In graph 1, the object is _________________________

a)

moving at a constant velocity forward

b)

not moving

c)

accelerating

d)

moving at a constant velocity backward

6.

In graph 2, the object is _________________________

a)

moving at a constant velocity forward

b)

not moving

c)

accelerating

d)

moving at a constant velocity backward

7.

In graph 3, the object is _________________________

a)

moving at a constant velocity forward

b)

not moving

c)

accelerating

d)

moving at a constant velocity backward

8.

In graph 4, the object is _________________________

a)

moving at a constant velocity forward

b)

not moving

c)

accelerating

d)

moving at a constant velocity backward

9.

Which location on the graph is accelerating?

a)

A

b)

B

c)

C

d)

D

e)

E

10.
The Law of Inertia
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
11.
F=ma
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
12.

For every action force, there is an equal and opposite reaction force.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

13.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
14.

A stationary bumper car is accelerated forward by the outside force of another bumper car colliding with it.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

15.

A magician pulls a table cloth from under a table of dishes and they stay in place.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

16.

If the net force is 0, then the forces are ___________

a)

balanced

b)

unbalanced

17.

When two objects rub against each other, the force they feel is called _____________________

a)

acceleration

b)

weight

c)

friction

18.

The greater the mass of an object,

a)

the more balanced it will be

b)

the higher its acceleration will be

c)

the more inertia it has

19.

The force that pulls falling objects toward Earth is called

a)

free fall

b)

air resistance

c)

gravity

20.

A second grader is pulling her sled behind her in the snow. She is crying because when she stopped to tie on her hat, the sled kept sliding and hit the back of her legs.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

21.
What is Newtons 1st law of motion?
a)
Force= Mass multiplied by acceleration 
b)
An object at rest stays at rest unless acted on an unbalanced force.
c)
For every action there is a equal and opposite  re-action.
d)
Law of gravity 
22.

What is Newtons 3rd law of motion?

a)

Force= Mass multiplied by acceleration

b)

An object at rest stays at rest unless acted on an unbalanced force.

c)

For every action force there is a equal and opposite reaction force.

d)

Law of gravity

23.

If the net force acting on a stationary object is zero, then the object will

a)

remain at rest.

b)

accelerate in the direction of the strongest force.

c)

begin moving backwards.

d)

decelerate at a steady rate of speed.

24.

The acceleration due to gravity on Earth is __________.

a)

9.8 m/s2

b)

32m/s2

c)

10N

d)

F=ma

25.

What pushes a rocket as it takes off?

a)

exhaust pushes on ground

b)

exhaust pushes on air

c)

exhaust pushes on rocket

d)

air pushes on rocket

26.

Action force is bat hits ball, reaction is

a)

ball flies through air

b)

ball hits bat

c)

weight of ball

27.

A bug hits a windshield of a car. Which feels the largest force?

a)

car

b)

bug

c)

both feel the same

d)

the bug is too small to feel a force at all

28.

If the same force is applied to a SMALL mass, its acceleration will be _________

a)

small

b)

it will be the same as a large mass

c)

large

d)

twice as much

29.

Pulling a table cloth from under the glasses and them not breaking is an example of Newtons ________ law.

a)

1st

b)

2nd

c)

3rd

d)

4th

30.

Action force: hammer hits nail, Reaction force: ________________

a)

nail goes into wood

b)

nail hits hammer

c)

makes a loud noise

31.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
32.

Friction is a force that acts

a)

in the same direction as the motion

b)

opposite to the direction of the motion

c)

with the motion

d)

towards the direction of the motion

33.

What do the variables in the equation F=ma stand for?

a)

F=force, M=mass, A=acceleration

b)

F=face, M=mass, A=apple

c)

F= Fahrenheit, M=movement, A=acceleration

d)

F=force, M=magnetic force, A=acceleration

34.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/s2 What is it's force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

35.

If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?

a)

150 Newtons

b)

15 Newtons

c)

150 kilograms

d)

100 kilograms

36.
The mass of a car is 1000 kg.  How much force would be required to accelerate the car at a rate of 3 m/s2? 
a)
1000 ÷ 3
b)
3 ÷ 1000
c)
1000 x 3
37.
A 5 kg block is pulled across a table by a net force of 32 N. Calculate the acceleration of the object. The answer to this question is most likely (HINT: Look at the units!!!) - 
a)
6.4 N
b)
6.4 m/s2
c)
6.4 kg
38.
A skier needs to apply a force of 132 N to accelerate at a rate of 2 m/s2. What is the mass of the skier? To solve this problem you must do - 
a)
132 ÷ 2
b)
2 ÷ 132
c)
132 x 2
39.

If the net force acting on a moving object is zero, then the object will

a)

stop

b)

move at a constant velocity

c)

begin moving backwards.

d)

decelerate at a steady rate of speed.

40.
What is the formula to calculate speed?
a)
S = t/d
b)
S = d/t
c)
S = d x t
d)
S = t x d
41.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
42.
According to the graph how far does the person travel in the first 5 seconds?
a)
2 m
b)
10 m
c)
0 m
d)
5 m
43.
What is the person doing from 5 seconds to 10 seconds?
a)
Walking 
b)
Running
c)
Standing Still 
d)
Walking Fast
44.
Velocity is both ____ and _____. 
a)
speed , direction 
b)
direction, mass
c)
volume, density 
d)
direction, magnitude 
45.

Pick all of the following that are velocities.

a)

4 km/s west

b)

5 cm/h south

c)

2 mph

d)

8 cm/year

e)

5 m/s up

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