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Year 9 Physics Mega Revision Quiz

Total questions: 55

Worksheet time: 1hrs 4mins

Name
Class
Date
1.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
2.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
3.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
4.

When two equal forces act in opposite directions on an object, they are called ______________________.

a)

frictional force

b)

balanced force

c)

centripetal force

d)

gravitational force

5.

When an unbalanced force acts on an object, the force ______________________.

a)

changes the motion of the object

b)

is cancelled by another force

c)

does not change the motion of an object

d)

is equal to the weight of the object

6.
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
7.
You push against a wall and the wall is pushing back on you.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
8.

What is the acceleration of a 50 kg object pushed with a force of 500 newtons?

a)

100 m/s2

b)

25,000 m/s2

c)

10 m/s2

d)

25 m/s2

9.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is its force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

10.
A sled sliding on a flat, icy surface with a constant velocity is best described by
a)
Newton’s first law of motion for objects at rest.
b)
Newton’s first law of motion for objects in motion.
c)
Newton’s second law of motion.
d)
Newton’s third law of motion.
11.
Which of the following explains the difference between speed and velocity?
a)
One has motion, and the other does not.
b)
One has direction, and the other does not.
c)
One involves time, and the other does not.
d)
One involves acceleration, and the other does not.
12.
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
d)
None of them
13.
If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
14.

If a force of 50 Newton's was applied to an object with a mass of 500 grams, what will the object's acceleration be? (HINT - UNITS!)

a)

10 m/s^2

b)

.1 m/s^2

c)

100 m/s^2

d)

1 m/s^2

15.
45 m/s2 is the... 
a)
Mass
b)
Force 
c)
Acceleration
d)
weight
16.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
17.

Which one of Newton's laws is shown

a)

3rd law

b)

2nd law

c)

1st law

18.

Which of Newton's laws is shown

a)

1st law

b)

3rd law

c)

2nd law

19.

This is Newton's 3rd law

a)

True

b)

False

20.

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

21.

Sophia was trying to explaining to Tyler how to find the speed. What equation should she use to calculate speed?

a)

speed = time/distance

b)

speed = distance X time

c)

speed = voleicty X time

d)

speed = distance/time

22.
The unit for speed is:
a)
m/s
b)
s
c)
m
d)
km
23.

What is the speed of a car travelling 50m in 4s?

a)

200 m/s

b)

12.5 m/s

c)

12.5 m

d)

200m

24.

A bike racer is riding on his new bike at Silverstone. The track is 4 km long. What is his average speed if he does a lap in 2 min 10 sec?

a)

1.90 m/s

b)

30.77 m/s

c)

0.03 m/s

d)

520 m/s

25.

How far does a lorry move if it is travelling at 12m/s for 180s?

a)

2160 m

b)

0.06 m

c)

15 m

d)

21.6 m

26.

How long does it take a car to travel 40m at 12m/s?

a)

4.8 s

b)

480 s

c)

3.33 s

d)

33.3 s

27.

The captain decides to show the team how it's done. He rows 2 km in 7 min. What's his speed?

a)

14 m/s

b)

0.29 m/s

c)

0.21 m/s

d)

4.76 m/s

28.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
29.

Which of these objects is NOT accelerating?

a)

A plane slowing down to land

b)

A rocket taking off into space

c)

A hiker moving at the same speed for hours

d)

A rollerblader heading downhill

30.
The speed boats speed increased from 0m/s to 24m/s in a time span of 12 seconds.
a)
4 m/s²
b)
2 m/s²
c)
8 m/s²
d)
6 m/s²
31.
A motorcycle rider increases his speed from 25 m/s to to 55 m/s in 10 seconds
a)
2.5 m/s²
b)
4 m/s²
c)
3 m/s
d)
3 m/s²
32.
A running horse increases his speed from 15 m/s to 42 m/s in 3 seconds.
a)
27 m/s²
b)
5 m/s²
c)
9m/s²
d)
11 m/s²
33.
John Cena’s speed increases from 15 m/s to 25 m/s as he runs downhill over a 5 second period.
a)
2 m/s²
b)
10 m/s²
c)
8 m/s²
d)
2 m/s
34.
Billy was driving his car and when he reached the tollbooth he slowed from 190m/s to 12m/s in 20 second.
a)
-8.9m/s²
b)
8.9m/s²
c)
9.8m/s²
d)
-9.8m/s²
35.
A car is moving at a velocity that is decreasing from 83m/s to 33m/s at 4 seconds.
a)
12.5 m/s²
b)
50 m/s²
c)
-12.5 m/s²
d)
10 m/s²
36.

Select all that is a unit of momentum.

a)

JJ  

b)

N sN\ s  

c)

kg m s−1kg\ m\ s^{-1}  

d)

kg m2s−2kg\ m^2s^{-2}  

37.

If a car doubles its velocity, its momentum ...

a)

stays the same

b)

increases by a factor of sqrt(2)

c)

increases by a factor of 2

d)

increases by a factor of 4

38.

Bill is twice as heavy as Alice, and Alice runs twice as fast as Bill. Compare the momentum between the two.

a)

Bill has more momentum.

b)

Alice has more momentum.

c)

Equal

39.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
40.
The definition of momentum is
a)
Mass in Motion
b)
The size of an object
c)
The velocity of an object
d)
A comparison between two objects
41.
In any collision (crash) the ______ is ALWAYS constant
a)
Total Momentum
b)
total speed
c)
total Velocity
d)
Energy
42.
A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?
a)
74.4 kg
b)
6030 kg
c)
0.0134 kg
d)
80 kg
43.
The total momentum before a collision is _________ the total momentum after a collision.
a)
equal to 
b)
less than 
c)
more than
d)
It depends on the type of collision
44.
Which of the following has the least amount of momentum?
a)
An ant walking along the ground
b)
An ant at rest
c)
An elephant walking
d)
An elephant running
45.

When I apply the brakes in my car, does my acceleration change?

a)

Yes, the acceleration becomes negative, meaning that it's opposite to the direction the car is moving

b)

No, there is no change in acceleration.

c)

Yes, the acceleration increases in the same direction as I'm moving

46.

Which vehicle would cause more damage to a brick home: a 1,500 pound compact car traveling at 50 mph or a 15,000 pound dump-truck traveling at 10 mph?

a)

The compact car because it's traveling faster

b)

The dump-truck, because it has more mass than the car

c)

There isn't enough information provided to determine the answer

47.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
48.
Is this a scalar quantity or a vector quantity?
A deer running 15 meters per second due west
a)
Scalar
b)
Vector
49.
Which of these is not a vector quantity? 
a)
displacement 
b)
time
c)
velocity 
d)
acceleration
50.
Which of the following quantities are vectors?
a)
speed, velocity, acceleration
b)
velocity, acceleration, force
c)
force, acceleration, mass
d)
length, mass, time
51.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
52.

What is happening between B and C in this graph?

a)

constant acceleration

b)

uniform velocity

c)

at rest

53.

What is happening between C and D in this graph?

a)

constant acceleration

b)

uniform velocity

c)

at rest

54.
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
55.

What is the total displacement of the car?

a)

60 m

b)

20 m

c)

0 m

d)

80 m

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