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Year 10 physics unit

Total questions: 68

Worksheet time: 1hrs 24mins

Name
Class
Date
1.

Scott travels north 5 km and then goes west 3 km before coming straight back south 2 km. What is his total distance?

a)

10

b)

7

c)

8

d)

6

2.
Bill runs 400 meters to Andy's house, turns around, and runs 400 meters back home.  What is Bill's distance?
a)
0 meters
b)
400 meters
c)
800 meters
d)
1600 meters
3.
What is the speed of a car that travels 400 m in 20 minutes?
a)
20 miles/hr
b)
20 m/min
c)
800 m/min
d)
200 miles/hr
4.
What is the equation to calculate speed?
a)
speed = distance/time
b)
speed = time/distance
c)
speed = time x distance 
d)
speed = speed/time 
5.

A car travels 30 km/hr for 3 hours, calculate the distance it will travel

a)

90 km

b)

10 km

c)

600 km

d)

90 miles

6.
Which of the following is a unit of speed ?
a)
sec
b)
mi
c)
m/s
d)
min
7.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
8.
Alan travels 100 km in 5hrs. Find his average speed in km/h
a)
5km/hr
b)
10km/hr
c)
50km/hr
d)
20km/hr
9.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
10.

What can we say about the graph between the O and A?

a)

The object is rapidly accelerating.

b)

The object is traveling at a constant speed.

c)

The object is not moving.

d)

The object is traveling away from the start position.

11.

What can we say about the graph between points A & B?

a)

The object is accelerating rapidly.

b)

The object is not moving.

c)

The object is at a constant speed.

d)

The object is slowing down.

12.

What can we say about the graph between points B & C?

a)

The object is returning home.

b)

The object is rapidly decreasing.

c)

The object is not moving.

d)

The object is at a constant rate of speed.

13.

what does conservation of energy mean

a)

It should be looked after

b)

It cannot be created or destroyed

c)

It is created and destroyed

14.

Gravitational Potential energy =

a)

mgh

b)

ma

c)

0.5 mv2

d)

9.81

15.

If a 15 kg block is lifted by 7 metres how much has its Gravitational potential energy store increased?

a)

105 J

b)

1030 J

c)

105 N

d)

1030 N

16.

what has more kinetic energy, a stone of mass 1 kg travelling at 100m/s or a boulder of mass 100kg travelling at 1m/s

a)

The stone

b)

The boulder

c)

They are both the same

d)

Neither

17.
What is the type of friction caused when an object falls through air?
a)
air resistance
b)
inertia
c)
rolling friction
d)
terminal velocity
18.
The tendency of an object to resist change in its motion is known as
a)
mass
b)
inertia
c)
balance
d)
force
19.
The SI (metric) unit for force is the 
a)
meter
b)
kilogram
c)
pound
d)
newton
20.
What happens when two forces act in the same direction?
a)
They add together
b)
The stronger one prevails
c)
They cancel each other out
21.
Balanced forces acting on an object
a)
can change the object's motion
b)
always change the object's motion
c)
never change the object's motion
d)
have nothing to do with the motion of an object
22.
The force that pulls falling objects towards Earth is called
a)
gravity
b)
acceleration
c)
free fall
d)
air resistance
23.
If the teacher puts a force of 20N to move a desk to the right at the same time a student puts a force of 30N to move the desk to the left the
a)
desk will not move
b)
the desk will move to the right
c)
the desk will move to the left.
24.
Newton's second law of motion says WHAT depends on an object's mass the the net force acting on the object
a)
mass
b)
acceleration
c)
gravity
d)
weirght
25.
The unit used for force is
a)
m/s
b)
m/s2
c)
N
d)
gram
26.

What is the formula for force?

a)

F = m / a

b)

F = ma

c)

F = a/m

27.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
28.

What type of energy is in this picture?

a)

Kinetic

b)

Potential

c)

Chemical

d)

Sound

29.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical
30.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
31.

Gravitational potential energy depends on

a)

Mass and velocity

b)

Mass and weight

c)

Weight and height

d)

Height and distance

32.

As a roller coaster moves down a hill, potential energy is converted into kinetic energy, thermal energy, and sound energy. What is true about the total energy of this system?

a)

Energy is gained (created) as the roller coaster moves

b)

Energy is lost (destroyed) as the roller coaster moves

c)

The total energy remains the same as the roller coaster moves

d)

The total energy constantly changes as the roller coaster moves

33.
what is kinetic energy?
a)
movement
b)
being still
34.
A book sitting on a shelf is an example of ______________.
a)
potential energy
b)
kinetic energy
35.
Which graph shows the object standing still?
a)
A
b)
B
c)
C
d)
D
36.
Which graph represents zero acceleration (constant velocity)?
a)
A
b)
B
c)
C
d)
D
37.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
38.

A runner races in the 100 m dash. It takes her 10 s to finish. What is her average speed?

a)

10 m/s

b)

1000 m/s

c)

100 seconds

d)

10 seconds

39.
Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?
a)
55km
b)
32km
c)
43km
d)
32miles
40.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
41.
Forces that have a net force of zero 
a)
Balanced force
b)
Unbalanced force
42.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
43.
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.
44.
A book rests on a table.  The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from accelerating downward at 9.8 m/sec2    
a)
The table presses back up on the book with an equal and opposite force of 20 newtons.
b)
The table presses back up on the book with a force greater than 20 newtons.
c)
The table and the book together are accelerating downwards at  9.8 m/sec2
d)
The inertia of the book holds it up
45.

A force of 90N is applied to each cart below, which one will accelerate the fastest?

a)

Cart 1

b)

Cart 2

c)

Cart 3

d)

Cart 4

46.

During which interval is the object not moving?

a)

B to C

b)

C to D

c)

D to E

d)

only at point A

47.
What is the objects  speed from 0-20 seconds?
a)
0.5m/s
b)
10m/s
c)
2m/s
d)
10m
48.
What is the total distance that the object travels?
a)
40m
b)
80m
c)
100
d)
100m
49.

At 60 seconds, how far had this object traveled?

a)

0 m

b)

10 m

c)

20 m

d)

40 m

50.

Calculate the KE of a moving 4 kg object traveling at a velocity of 3 m/s.

a)

18 J

b)

36 J

c)

12 J

d)

6 J

51.

How much KE does a moving 6 kg object have if it moves with a velocity of 3 m/s?

a)

27 J

b)

18 J

c)

9 J

d)

2 J

52.

What is the mass of a moving object that has the kinetic energy of 100 Joules and moves at a velocity of 2 m/s?

a)

50 kg

b)

200 kg

c)

25 kg

d)

100 kg

53.
You serve a volleyball with a mass of 2 kg. The ball leaves your hand with a speed of 30 m/s. What is the KE of the ball?
a)
900 J
b)
1800 J
c)
60 J
d)
30 J
54.
There is a bell at the top of a tower that is 45 m high. The bell weighs 100 kg. What is the potential energy of the bell?
a)
980 J
b)
441 J
c)
4,500 J
d)
44,100 J
55.
A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. What is the KE of the car?
a)
22,400 J
b)
44,800 J
c)
896,000 J
d)
1,792,000 J
56.

An 2 kg apple is hanging in a tree, 10 m off the ground. What is the gravitational potential energy of the apple? (gravity = 9.8 m/s2)

a)

19.6 J

b)

20 J

c)

98 J

d)

196 J

57.
The acceleration of an object due to gravity on Earth is...
a)
8.9 m/s2
b)
9.8 m/s2
c)
It depends on the mass of an object
d)
Equal to its kinetic energy
58.
Which of the following affects the gravitational potential energy of an object?
a)
The mass of the object
b)
The height of the object
c)
The velocity of the object
d)
Both the mass and height of the object
59.

Lowering an object __________ its potential energy.

a)

decreases

b)

increases

c)

does not change

d)

doubles

60.

Stored energy is also known as ______ energy.

a)

kinetic

b)

potential

c)

mechanical

d)

none of these

61.

What location on the coaster has the greatest potential energy

a)

W

b)

X

c)

Y

d)

Z

62.

Which location has the least potential energy but the most kinetic energy.

a)

W

b)

X

c)

Y

d)

Z

63.

Which law states that the acceleration of an object depends on the force exerted on it and its mass?

a)

1st Law

b)

2nd Law

c)

3rd Law

64.

Which law states that for every action there is an equal and opposite reaction?

a)

1st Law

b)

2nd Law

c)

3rd Law

65.

Which law states that an object at rest stays at rest and an object in motion stays in motion unless an unbalanced force acts on it?

a)

1st Law

b)

2nd Law

c)

3rd Law

66.

What is the name of Newton's 1st Law of Motion?

a)

Law of Momentum

b)

Law of Conservation of Momentum

c)

Law of Inertia

67.

Which law is this picture an example of?

a)

Law of Inertia (1st Law)

b)

Law of Conservation of Momentum (3rd Law)

c)

Law of Momentum (2nd Law)

68.

Which law is this picture an example of?

a)

Law of Inertia (1st Law)

b)

Law of Momentum (2nd Law)

c)

Law of Conservation of Momentum (3rd Law)