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Newtons 2nd Law Practice

Total questions: 65

Worksheet time: 2hrs 7mins

Name
Class
Date
1.

(Using Fnet=ma), What net force is required to accelerate a car at a rate of 2 m/s2 if the car has a mass of 3,000 kg?

a)

6,000 N

b)

1,500 N

c)

3,002 N

d)

2,998 N

2.

(Use Fnet=ma), A 10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3 m/s2?

a)

30 N

b)

13 N

c)

3.3 N

d)

0.3 N

3.

(Use Fnet=ma). Sally has a car that accelerates at 5 m/s2. If the car has a mass of 1,000 kg, how much force does the car produce?

a)

5,000 N

b)

200 N

c)

0.005 N

d)

1,005 N

4.

(Use Fnet=ma). What is the mass of a falling rock if it produces a force of 147 N? (Acceleration due to gravity = 9.8 m/s2)

a)

15 kg

b)

1,440.6 kg

c)

156.8 kg

d)

137.2 kg

5.

(Use Fnet=ma). What is the mass of a truck if it produces a force of 14,000 N while accelerating at a rate of 5 m/s2?

a)

2,800 kg

b)

0.0004 kg

c)

70,000 kg

d)

13,995 kg

6.

(Use Fnet=ma). What is the acceleration of a softball if it has a mass of 0.5 kg and hits the catcher's mitt with a force of 25 N?

a)

0.5 kg

b)

50 kg

c)

25.5 kg

d)

12.5 kg

7.

(Use Fnet=ma). Your parents' car has a mass of 2,000 kg. If your car produces a force of 5,000 N, at what rate will it accelerate?

a)

2.5 m/s2

b)

0.4 m/s2

c)

10,000,000 m/s2

d)

3,000 m/s2

8.

(Use Fnet=ma). If an object was accelerating at 10 m/s2, and a force of 10 newtons was required to accelerate it, what was the object's mass? (m=F/a)

a)

1 kilogram

b)

10 kilograms

c)

2 kilograms

d)

5 kilograms

9.

(Use Fnet=ma). Use the diagram to determine the net force, assume the object is accelerating at a rate of 2 m/s2 and determine the mass of the object.

a)

2 kg

b)

4 kg

c)

6 kg

d)

8 kg

10.

(Use Fnet=ma). Use the diagram to determine the net force, assume the object is accelerating at a rate of 3 m/s2, and determine the object's mass?

a)

3 kg

b)

5 kg

c)

60 kg

d)

75 kg

11.

What is the equation to solve for FORCE?

a)

F=ma

b)

F=m/a

c)

F=a/m

12.
Since Force = Mass * Acceleration, how would you manipulate the equation to solve for mass?
a)
Divide both sides of the equation by Mass
b)
Divide both sides of the equation by force
c)
Divide both sides of the equation by acceleration
d)
Equations cannot be manipulated
13.
The larger the mass you have the _____ force you need to change its motion.
a)
more
b)
less
14.

(Use Fnet=ma). Use the diagram to determine the net force, assume the object is accelerating at a rate of 2 m/s2. What amount of mass does the object have?

a)

2 kg

b)

4 kg

c)

6 kg

d)

8 kg

15.

Since Force = Mass * Acceleration, how would you manipulate the equation to solve for acceleration?

a)

Divide both sides of the equation by Mass

b)

Divide both sides of the equation by force

c)

Divide both sides of the equation by acceleration

d)

Equations cannot be manipulated

16.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass. 
a)
velocity
b)
gravity
c)
net force
d)
distance
17.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
18.
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
19.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
20.

Which box will accelerate MORE given the SAME applied force?

a)

top

b)

bottom

21.
A change in velocity over time is called ___________.
a)
speed
b)
force
c)
acceleration
d)
direction
22.

m/s2 is the unit for.....

a)

Mass

b)

Force

c)

Acceleration

d)

weight

23.

How do you find the net force of this image.

a)

Add up all the arrows

b)

Add a green arrow and the orange arrow.

c)

Subtract all the arrows.

d)

Add the green arrows and subtract the orange arrow.

24.

What is the net force on the object pictured?

a)

3 N

b)

5 N

c)

4 N

d)

8 N

25.

What is the net force and to what direction.

a)

210 N to the right

b)

280 N to the right

c)

110 N to the left

d)

180 N to the left

26.
Calculate the net force shown in the  diagram?
a)
41 N
b)
25 N
c)
16 N
d)
9 N
27.

Which SI unit is used to measure mass?

a)

s

b)

m

c)

kg

d)

Pa

28.
What is a measure of the change of velocity of a moving object?
a)
speed
b)
acceleration
c)
motion 
d)
velocity 
29.
True or False. Unbalanced forces will never have a net force of zero Newtons. 
a)
True
b)
False
30.
_____________ causes changes in the speed and/or direction of motion. 
a)
Speed
b)
Force
c)
Velocity
31.
The SI unit for force is 
a)
Watt (W)
b)
Power (P)
c)
Newton (N)
d)
Force (F)
32.
A 20 kg bike accelerates at 10 m/s2.  what was the force?
a)

25 Newtons

b)

20 Newtons

c)

200 Newtons

d)

10 Newtons

33.

Kelli is trying to move a 1200kg car at a rate of 4 m/sec2. What is the force needed to accelerate of the object?

a)

300N

b)

1,250N

c)

4800 N

d)

5kg

34.
If you increase the mass on an object, its acceleration
(a)  
Choose from the below words
decreases
stays the same
also increases
stops
35.

If you increase the force on an object, its acceleration (a)  

Choose from the below words
also increases
decreases
stays the same
stops
36.

Force is equal to

(a)   * ​ (b)  

Choose from the below words
mass
acceleration
weight
speed
37.

Which example best explains Newton's Second Law of Motion?

a)

When a glass slid across a table, it spilled water when it stopped suddenly.

b)

It takes less force to move a small car compared to a large truck.

c)

When you sit on a chair, your body exerts a downward force on the surface of the chair, while the chair exerts an equal and upward force on your body.

38.

Forces that are exerted on an object which are equal in size but opposite in direction

a)

Unbalanced force

b)

Balanced force

39.
Which law of motion states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force?
a)
Newton's 1st Law of Motion
b)
Newton's 2nd Law of Motion
c)
Newton's 3rd Law of Motion
40.
The combination of all forces acting on an object is called __________
a)
Parallelogram Rule
b)
Net Force
c)
Vector Quantity
d)
All the Jedi's using their abilities together
41.

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

a)

True

b)

False

42.

An evil ewok threw a rock with a force of 24.6N and an acceleration of 6m/s2 at an innocent stormtrooper. What was the rocks mass?

a)

4Kg

b)

41kg

c)

4.1kg

d)

46kg

43.

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

a)

20 m/s2

b)

2 m/s2

c)

0.5 m/s2

d)

120 N

44.

What happens when unbalanced forces act on an object at rest?

a)

the object remains at rest

b)

the object begins moving in an unpredictable direction

c)

the object begins moving in the direction of the net force

d)

the object begins moving opposite to the direction of net force

45.

A 20 kg bike accelerates at 10 m/s2. What was the force?

a)

25 Newtons

b)

20 Newtons

c)

200 Newtons

d)

10 Newtons

46.

What is the net force?

a)

40 N left

b)

400 N right

c)

0 N Balanced

d)

40 N right

47.

What Unit do we Measure Force in?

a)

Newtons

b)

Joules

c)

Kilogram

d)

Work

48.

Jenny applies a 60 N force to a 20 Kg cart, what is the acceleration of the cart if friction can be neglected?

a)

1200 m/s/s

b)

0.33 m/s/s

c)

20 m/s/s

d)

3 m/s/s

49.

What is force?

a)

A push exerted on an object

b)

A push or pull exerted on an object

c)

A pull exerted on an object

d)

Nothing

50.

The mass of a wagon is 40 kg. The wagon accelerates at 8 m/s2 . What is the force?

a)

38.25 Kg

b)

320N

c)

5N

d)

3.825Kg

51.

If an object was accelerating at 10 m/s2, and a force of 10 newtons was required to accelerate it, what was the object's mass?

a)

1kg

b)

10kg

c)

5kg

d)

2kg

52.

What is Newton's 2nd Law?

a)

F=ma

b)

Every action has an equal and opposite reaction

c)

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

d)

Friction

53.

If the man pushes with an equal amount of force, which object will accelerate more?

a)

Car because it has more mass

b)

Lawnmower because it has less mass

c)

Car because it has less mass

d)

Lawnmower because it has more mass

54.

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

a)

250 N

b)

2.5 N

c)

25 N

d)

15 N

55.
If an object accelerates at 5 m/s^2, what will it's velocity be in 5 seconds? 
a)
5 m/s
b)
25 m/s
c)
25 m/s faster than its original velocity
d)
20 m/s faster than its original velocity
56.
Acceleration is a change in...
a)
Inertia
b)
Gravity
c)
Velocity
d)
Distance
57.
Why would one ball travel a greater distance than the other when pushed with the same amount of force?
a)
Different sizes
b)
Different weights
c)
Different masses
d)
Different forces
58.
Which shopping cart will have more acceleration?  
a)
The empty shopping cart
b)
The shopping cart that's full
c)
They will be the same
59.
Will it take more force to push an empty shopping cart or a shopping cart that is full?
a)
The empty shopping cart
b)
The full shopping cart
c)
They will take the same amount of force
60.

A force of 20 N acts upon a 5 kg block. Calculate the acceleration of the object.

a)

100 m/s2

b)

70 m/s2

c)

15 m/s2

d)

4 m/s2

61.

Which would require more force to place in your shopping car?

a)

Both

b)

Pineapple

c)

Watermelon

62.

What is the unit for mass?

a)

kg

b)

newton

c)

m/s

d)

m/s2

63.

What is the equation needed to solve for acceleration?

a)

A=fm

b)

A=m/f

c)

A=f/m

64.

What is the equation needed to solve for mass?

a)

M=a/f

b)

M=f/a

c)

M=fa

65.
The larger the mass you have the _____ force you need to change its motion.
a)
more
b)
less