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Test Prep #1: Newton's Laws of Motion

Total questions: 41

Worksheet time: 35mins

Name
Class
Date
1.

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

2.

Pictures on the wall is hung by tape. The pictures was found on the ground. Which force acted upon the picture, causing it to fall?

a)

gravity

b)

friction

c)

magnetism

d)

evaporation

3.

If you roll a toy car on different types of material. What are you testing by rolling the car on foil, felt, or carpeted material?

a)

gravity

b)

gravity and magnetism

c)

magnetism and friction

d)

friction

4.

A push or pull that can change the position or motion of an object/material is --

a)

magnetism

b)

motion

c)

force

5.

Two students were pulling on the rope below with the same amount of force. The man increased the amount of force he was using by 2 N and the woman increased the amount of force she was using by 4 N. Which BEST describes the motion that resulted after they increased force?

a)

The both moved farther from one another

b)

The man moved towards the woman

c)

The woman moved towards the man

d)

They both moved farther from one another

6.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
7.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
8.
Is gravity a push or a pull?
a)
push
b)
pull
c)
neither
d)
both
9.

When conducting an experiment, the best way to tell how changing something (a variable) affects the thing being changed is

a)

To change your clothes

b)

To change only ONE variable at a time

c)

To change as many variables as you can

d)

To change your name

10.

Newton's 2nd Law says the acceleration of an object depends on its _______ and ______. (Choose two answers)

a)

force or applied force

b)

weight

c)

gravity

d)

mass

11.

Net force is a combination of all ________ acting on an object.

a)

forces

b)

speeds

c)

accelerations

d)

velocities

12.

What will be the effect on the boy in the picture if the driver stops quickly?

a)

Because of inertia he will remain in the same position.

b)

He will be pushed back into the car seat.

c)

He will move from one side of the car seat to the other.

d)

He will move forward pressing against the seatbelt.

13.

A spring scale measures _______.

a)

inertia

b)

force

c)

friction

14.

Forces are measured in units called ________

a)

Newtons (N)

b)

grams (g)

c)

pounds (lb)

d)

centimeters (cm)

15.

A lamp sitting on a table is demonstrating Newton's ___ Law.

a)

1st

b)

2nd

c)

3rd

d)

4th

16.

Sitting at the top of a steep hill on a roller coaster (not moving), is an example of:

a)

Acceleration

b)

Inertia

c)

Speed

d)

Velocity

17.

Which formula would you use to solve this problem?

A 25 kg bike accelerates at 10 m/s2. What was the force?

a)

F = m (a)

b)
c)

s = dts\ =\ \frac{d}{t}

d)

p = m (v)p\ =\ m\ \left(v\right)

18.

Which formula would you use to solve this problem?

A sports car can go from 0 to 60 mph in 14 seconds. What is the acceleration?

a)

F = m (a)

b)
c)

s = dts\ =\ \frac{d}{t}

d)

p = m (v)

19.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
20.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up  
21.

The SI unit for acceleration is

a)

mph

b)

ft/sec

c)

m/s2

d)

m/s

22.
A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest.  Find the acceleration.
a)
30 m/s
b)
24 m/s2
c)
9 m/s2
d)
81 km/hr
23.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
24.

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

a)

The cannon moving forward

b)

The cannon moving backwards

c)

The cannonball moving backwards

d)

The cannonball moving forward

25.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
26.
A bus hits a bug and the bug splatters on the windshield, which force is greater?
a)
The Bus
b)
The Bug
c)
They're the same
d)
Gravity acting on the bus
27.

A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

28.
What is the difference between mass and weight?
a)
mass is how much matter is in an object, and weight is the gravitational pull on that object
b)
mass and weight are the same
c)
weight affects how much mass is in an object
d)
weight is determined by how many atoms make up an object
29.

A push or pull on an object is

a)

a force

b)

acceleration

c)

mass

d)

momentum

30.

Suppose that an astronaut throws a baseball in outer space at a location far from significant influences of gravity and air resistance. One would expect that the baseball would ____.

a)

eventually stop since all objects ultimately "lose their steam"

b)

eventually stop as its inertia slowly becomes used up

c)

continue in motion with the same speed and direction

d)

either a, b, or c -- depending on whether the astronaut continues to push it

31.

Inertia is a force that keeps stationary objects at rest and moving objects in motion at a constant velocity.

a)

True

b)

False

32.

The law of inertia (Newton's first law) applies _____.

a)

to moving objects only

b)

only to objects that are not moving

c)

to both moving and nonmoving objects

33.

What is Newton's 2nd Law?

a)

Every action has an equal and opposite reaction

b)

An object at rest stays at rest, an object in motion stays in motion.

c)

F = ma

d)

Friction

34.

True or False. Acceleration of an object is directly proportional to the net force acting on it

a)

True

b)

False

35.

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

a)

20 m/s2

b)

0.5 m/s2

c)

2 m/s2

d)

120 N

36.

Find how much force the man will need to exert to move the car.

a)

5000 N

b)

50 N

c)

20,000 N

d)

500 N

37.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
38.
Calculate the net force shown in the  diagram?
a)
0N
b)
400 N
c)
600 N
d)
800 N
39.
Calculate the net force shown in the  diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
40.

If there are two forces going in the opposite direction how would you find the net force?

a)

Subtract

b)

Add

c)

Neither

d)

Multiply

41.
Look at the diagram. What would be the direction of the motion ?
a)
movement to the left
b)
movement to the right
c)
no movement

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