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Newton, force, balance and unbalanced

Total questions: 61

Worksheet time: 2hrs 17mins

Name
Class
Date
1.

Which one of Newton's laws is shown

a)

3rd law

b)

2nd law

c)

1st law

2.

What does this picture represent

a)

Force,magnetism,acceleration

b)

Force, money, Apples

c)

Force, Mass, Acceleration

d)

Funny, monkeys, Arrive

3.

Which of Newton's laws is shown

a)

1st law

b)

3rd law

c)

2nd law

4.

This is Newton's 3rd law

a)

True

b)

False

5.

This is Newton's 2nd law

a)

True

b)

False

6.

What force slows objects down and keeps them from moving?

a)

Acceleration

b)

Gravity

c)

Friction

d)

Net Force

7.

When there is a change in motion?

a)

When forces are balanced

b)

When the forces are unbalanced

c)

Whe forces are equal

d)

Never

8.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
9.
A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.
a)
The Law of Inertia (1st law)
b)
The Law of Acceleration (2nd law)
c)
The Law of Conservation of Momentum
d)
Action Reaction Law (3rd law)
10.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
11.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger 
b)
smaller 
c)
equal 
d)
less
12.
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
13.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
14.
You hit a wall with a stick.  The equal but opposite reaction is _____
a)
the wall pushes against you
b)
the stick pushes against you
c)
you push against the stick
d)
the wall pushes against the stick
15.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
16.

When a student runs and kicks a ball, they have applied an ___________ force to move the ball.

a)

Balanced

b)

Magnetic

c)

Spring

d)

Unbalanced

17.

When the teacher rearranges the desks in the classroom, she must apply ____________ to push and pull the desks around.

a)

acceleration

b)

force

c)

weight

d)

magnets

18.

Which law is represented in the picture?

a)

1

b)

2

c)

3

d)

All of the above

19.

Acceleration is due to a force put on an object mass

a)

1

b)

2

c)

3

d)

All of the above

20.

Equal and opposite

a)

1

b)

2

c)

3

d)

All of the above

21.

. Force exerted between the surfaces of two objects.

a)

Friction

b)

Inertia

c)

Forces

d)

Gravity

22.

Observe the motion of the washer as the notecard is pulled quickly out from under it. Which of Newton's Laws does this represent?


Observar el movimiento de la moneda mientras saca rápidamente el papel de debajo. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, inertia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

23.

Watch what happens as Blake releases the balloon. Which of Newton's Laws does this represent?


Mira lo que sucede cuando Blake suelta el globo. ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, interia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

24.

Observe the motion of the washer as I quickly pull the card out from under it. What happened to the washer? Why? Which of Newton's Laws does this represent?


Observe el movimiento de la moneda mientras saco rápidamente la tarjeta de debajo. ¿Qué pasó con la moneda? ¿Por qué? ¿Cuál de las leyes de Newton representa esto?

a)

Newton's 1st Law, inertia

b)

Newton's 2nd Law, Force = m x a

c)

Newton's 3rd Law, action/reaction

25.

What is the formula for the law of acceleration?

a)

M = F x A

b)

F = M x A

c)

A = F x M

26.
For every action, there is an equal and opposite reaction.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
27.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
28.

The more mass an object has, the _______ force it takes to accelerate it.

a)

more

b)

less

29.

Forces are never produced in pairs with equal and opposite strengths.

a)

True

b)

False

30.

An object in motion will stay in motion unless acted upon by ____________

a)

a wall( stops motion)

b)

friction

c)

air resistance

d)

all of the above

31.

Weight and force are measured in ___________.

a)

meters

b)

Newtons

c)

pounds

d)

seconds

32.

What is the formula using F=MA for acceleration?

a)

A= F/M

b)

F= M*A

c)

A=A/F

33.

What is the force of a baseball that has a mass of 142 kg and has an acceleration of 30 m/s2?

a)

1 N

b)

2 N

c)

4260 N

d)

3 N

34.

Which is an example of the law of action/reaction?

a)

A rocket taking off from Earth

b)

A crash test dummy flies through the windshield in a collision

c)

A small rock skips a pond faster than a large rock

35.

It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes

a)

Newton's first law, the law of inertia

b)

Newton's second law, the law of acceleration

c)

Newton's third law, the law of action reaction

d)

The law of universal gravitation

36.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
37.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
38.
What is the attractive force that exists between all objects that have mass?
a)
Weight
b)
Mass 
c)
Gravity
d)
Viscosity
39.
What is the unbalanced force on a boy and his skateboard if the total mass of the boy and skateboard is 62 kg and their acceleration is 0.36 m/s/s forward?
a)
22.32 N
b)
172.2 N
c)
180 N
d)
24 N
40.
All objects in the universe attract each other through gravitation force is called...
a)
The Law of Universal Gravitation
b)
The Law of Conservation of Momentum
c)
The Law of Thermodynamics
d)
The Law of Monty the Snake
41.
What is the net force?
a)
30 N 
b)
25 N 
c)
5 N 
d)
55 N 
42.

What is the Net Force?

a)

10

b)

0

c)

3

d)

2

43.
Complete the following statement: The farther away two planets are the _______ the gravitational force between them.
a)
more
b)
same
c)
dosen't matter
d)
less
44.
As distance separating the objects increases the force
a)
increases
b)
decreases
c)
stays the same
45.
A force of attraction between 2 object that is directly related to mass and indirectly related to distance.
a)
mass
b)
weight
c)
gravity
d)
kilogram
46.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
47.
As the distance between 2 objects increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
48.
Which of the following will not change in different gravitational fields?
a)
wieght
b)
force
c)
mass
d)
pounds
49.
Which of the following will change with different gravitational forces?
a)
mass
b)
amount of matter in an object
c)
weight
d)
kilograms
50.

Gravity is a _____ that _____

2 objects towards one another.

a)

thing

reaches

b)

energy

pushes

c)

force

pulls

d)

weight

takes

51.

Which model has greater gravitational attraction.

a)

model A

b)

model B

c)

both models have equal gravity

52.

When will the gravity between two objects be the LEAST?

a)

when the masses of both objects is small and the objects are close together

b)

when the masses of both objects is small and the objects are far apart

c)

when the masses of both objects is large and the objects are close together

d)

when the masses of both objects is large and the objects are far apart

53.
A person would weigh more on Jupiter than on the Earth because . . .
a)
Jupiter has more mass, and therefore more gravity
b)
Jupiter has less mass, and therefore more gravity
c)
Jupiter has more mass, and therefore less gravity
d)
Jupiter has less mass and therefore less gravity
54.

What is the net force?

a)

40 N left

b)

0 N Balanced

c)

400 N right

d)

40 N right

55.

How will motion change?

a)

It will not accelerate.

b)

It will accelerate to the right.

c)

It will accelerate to the left.

d)

It will accelerate upward.

56.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
57.

You and your dad are moving the couch from one side of a room to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

a)

60 N right

b)

10 N left

c)

60 n right

d)

50 N left

58.

A plane is traveling East encounters a wind traveling West that exerts a force on the plane. The plane will

a)

speed up

b)

slow down

c)

remin at a constant speed

d)

change direction

59.

A skydiver falls downward at a constant speed. What can we say about the forces acting on them?

a)

weight is larger than air resistance

b)

air resistance is larger than weight

c)

air resistance and gravity

d)

gravitational force is greater than weight

60.

A rock that weighs 75 N is dropped from a building and falls downwards through the air. Air resistance exerts a force of 50 Newtons upwards. The rock will

a)

accelerate downwards and speed up

b)

accelerate downwards and slow down

c)

acceleration upwards and speed up

d)

accelerate upwards and slow down

61.
Which one is balanced?
a)
top
b)
bottom
c)
both
d)
neither

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