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Physical Science Sem 1 Review

Total questions: 100

Worksheet time: 34mins

Name
Class
Date
1.

The ability to do work or cause change is called ________?

a)

force

b)

work

c)

energy

d)

power

2.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
3.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
4.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
5.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
6.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
7.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
8.
What are the two factors that affect kinetic energy?
a)
time and energy
b)
power and mass
c)
mass and speed
d)
time and work
9.
Choose the BEST answer that is an example of an energy transformation from potential energy to kinetic energy.
a)
a ball rolling down a ramp
b)
a picture hanging on the wall
c)
a swing swaying back and forth
d)
a coat hanging on a hook
10.
A lump of coal.
a)
Potential
b)
Kinetic
11.
A moving car.
a)
Potential
b)
Kinetic
12.

Can energy be destroyed?

a)

no

b)

yes

13.
Energy can be _____________ or changed from one type to another.
a)
destroyed
b)
transferred
c)
created
d)
ignored
14.

Which of the following is the correct equation for calculating an object's gravitational potential energy?

a)

PE = mgh

b)

PE = mg / h

c)

PE = mg + h

d)

PE = gh

15.

What is the gravitational potential energy (GPE) of a 1 kilogram book that is 1 meter above the ground?

g = 9.8 m/s2

a)

9.8 Joules

b)

1.0 Joule

c)

0.10 Joule

d)

11.8 m/s2

16.

True or False: The equation for Kinetic energy is KE=1⁄2mv2

a)

True

b)

False

17.

Which object shows an energy transformation from electrical to mechanical?

a)
b)
c)
d)
18.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
19.

When you drop a basketball it does not bounce back all the way. This is because some of the mechanical energy is 'lost' when it transforms into which of the following ?

a)

Sound

b)

Chemical

c)

Radiant

d)

Hamster

20.
A measure of the average kinetic energy of the individual particles in an object is called:
a)
thermal energy
b)
conduction
c)
convection
d)
temperature
21.
To turn a liquid into a gas, you _____ energy.
a)
Add
b)
Remove
22.

Observe the diagram. Which statement is true about the kinetic energy of the molecules in the containers?

a)

The molecules are moving faster in Diagram A

b)

The molecules are moving slower in Diagram A

c)

The molecules are moving at the same rate in both diagrams

23.
Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC
a)
Wood
b)
Water
c)
Both are the same
24.
What is the transfer of heat by movement of liquids or gases?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
25.
What is a transfer of heat energy by electromagnetic waves?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
26.
What is the transfer of heat by direct contact?
a)
Convection
b)
Electromagnetic waves
c)
Radiation
d)
Conduction
27.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
28.
What is a substance that DOES conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
29.

Phase change going from Liquid to Solid...

a)

Melting

b)

Freezing

c)

Condensation

d)

Sublimation

30.

Phase change going from a Gas to a Liquid...

a)

Sublimation

b)

Deposition

c)

Ionization

d)

Condensation

31.

Phase change going from a Liquid to a Gas...

a)

Vaporization

b)

Deposition

c)

Condensation

d)

Melting

32.

Phase change going from a Solid to a Liquid...

a)

Freezing

b)

Condensation

c)

Melting

d)

Sublimation

33.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

34.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

35.

What do all waves transfer?

a)

Matter

b)

Heat

c)

Electricity

d)

Energy

36.

Which of the following can waves transfer energy through?

a)

solid

b)

liquid

c)

gas

d)

empty space

e)

all of the above

37.

What are the two types of waves?

a)

longitudinal and transverse

b)

sound and light

38.

What is the number of complete waves passing a fixed point in a given amount of time?

a)

Amplitude

b)

Intensity

c)

Wavelength

d)

Frequency

39.

What does #1 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

40.

What does #2 represent?

a)

Period

b)

Frequency

c)

Wavelength

d)

Amplitude

41.

Review: What is it called when a wave bounces off an object?

a)

Reflection

b)

Refraction

c)

Diffraction

42.

What type of interference is being shown in the picture?

a)

Constructive

b)

Destructive

43.

What type of interference is occurring in the picture?

a)

Constructive

b)

Destructive

44.

What is the Doppler Effect?

a)

A change in frequency due to the relative motion of a wave source and an observer

b)

When a wave overlaps with another wave

c)

When a wave bounces off of another object

d)

When a wave bends due to traveling through a different medium

45.

An ambulance is driving towards you as you stand on the sidewalk. What happens to the pitch of the siren as it comes towards you?

a)

It increases

b)

It decreases

46.

You are standing on the side of the road when a police car races past you with its siren on. After the police car passes you, what happens to the pitch of the siren?

a)

It increases

b)

It decreases

c)

It turns red

47.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
48.
What is voltage measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
49.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
50.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
51.

Which of the following best explains an electric current?

a)

An electric current is the flow of positive charges in a circuit.

b)

An electric current is the flow of atoms in a circuit.

c)

An electric current is the flow of electrons in a circuit.

d)

An electric current is the flow of neutrons in a circuit.

52.
Which circuit (s) are parallel?
a)
A
b)
A and B
c)
B and C
d)
C
53.

What is a circuit that only has ONE path for electricity to flow?

a)

series circuit

b)

closed circuit

c)

parallel circuit

d)

light bulb

54.
Look at the picture.  Why won't the light bulb light up?
a)
The wires from the light bulb are not connected to the battery
b)
The switch is not closed to form a complete circuit 
c)
The wires from the light bulb are not connected to the switch 
d)
The wires from the battery are not connected to the switch 
55.
Current that reverses direction in a regular pattern is called ____. 
a)
direct current 
b)
circuit current
c)
magnetic current
d)
alternating current 
56.

DC stands for __________ current.

a)

deviating

b)

default

c)

diverging

d)

direct

57.

Magnetism is a force of ____________________________ that occurs between two _____________ objects.

a)

attraction or repulsion, magnetic

b)

external or internal, magnetic

c)

external or repulsion, electronic

d)

attraction or internal, electronic

58.

A permanent magnet is a material that produces a ___________________ field without any ___________________ magnetic field being present.

a)

electronic, internal

b)

magnetic, internal

c)

magnetic, external

d)

electronic, external

59.

Every magnet has both a _________ pole and a __________ pole.

a)

North, South

b)

East, West

c)

Positive, Negative

d)

Positive, South

60.

Certain materials respond to magnetic fields by becoming ______________ themselves. ____________ is one of these materials.

a)

magnetic, Plastic

b)

electronic, Iron

c)

magnetic, Iron

d)

electronic, Plastic

61.

Some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized in this way are called ________.

a)

electromagnets

b)

electrons

c)

electrochromic devices

d)

permanent magnets

62.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

63.

What do we call a device that converts electricity into mechanical movement?

a)

electric charge

b)

electric motor

c)

electric current

d)

electric plasma

64.

What do you call a device that converts mechanical movement into electricity?

a)

electric field

b)

electric motor

c)

electric generator

d)

electric plasma

65.

When will the forces of gravity between two objects be the GREATEST?

a)

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

b)

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

c)

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

d)

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

66.

Which statement about gravity is true?

a)

gravity causes objects to pull towards one another

b)

gravity causes objects to push away from each other

c)

gravity only takes place between planets

d)

the moon doesn't have any gravity

67.
An object with mass has gravity.
a)
True
b)
False 
68.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
terminal velocity 
69.
When does a falling object experienced balanced forces?
a)
Terminal velocity
b)
During free fall
c)
When it first starts to fall
d)
Just before it hits the ground
70.
Both of these are measured in Netwons
a)
Force and acceleration
b)
Force and weight
c)
Mass and weight
d)
Mass and acceleration
71.
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
72.

the rate at which speed or velocity changes

a)

acceleration

b)

average speed

c)

motion

d)

reference point

73.

Is this a speed or acceleration graph?

a)

speed

b)

acceleration

74.

What is happening at segment B?

a)

no motion/object at rest

b)

constant speed

c)

acceleration

75.

speed of an object in a particular direction

a)

motion

b)

velocity

c)

speed

d)

acceleration

76.

total distance traveled divided by total time taken to travel that distance

a)

velocity

b)

motion

c)

acceleration

d)

average speed

77.
Acceleration of an object happens when things ________
a)
slow down
b)
go faster
c)
change direction (turn)
d)
All of the above
78.
What is the object doing from 10-12.5 seconds?
a)
Slowing down 
b)
Returning to the starting position
c)
Speeding up
d)
Not moving
79.
Which time section is the object moving the fastest?
a)
0-10 seconds
b)
10-20 seconds
c)
20-30 seconds
d)
30-40 seconds
80.

Which runner stopped for a rest?

a)

Albert

b)

Bob

c)

Charlie

d)

None of them stopped

81.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
82.
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
83.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
84.
What law?
a)
1st
b)
2nd
c)
3rd
85.
Force pair that has a net force of zero.
a)
Balanced force
b)
Unbalanced force
86.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
87.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
88.

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

89.

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

90.

Friction is a

a)

non - contact force

b)

contact force

c)

electrostatic force

d)

magnetic force

91.

The factors on which friction depends

a)

nature of the surfaces

b)

how hard the objects are pressed together

c)

both (a) and (b)

d)

none of these

92.

Friction can be increased by making the surface

a)

rough

b)

smooth

c)

does not depend on the nature of surface

d)

none of these

93.

Which of the following statements is true?

a)

Friction pulls objects towards the centre of the earth

b)

Friction primarily affects the objects that contain iron

c)

Friction slows down or stops objects in motion

d)

Friction does not affect objects in motion

94.

________________ is done whenever a force moves an object a distance.

a)

Load

b)

Friction

c)

Force

d)

Work

95.

How can simple machines make work easier?

a)

by decreasing the force needed to complete the task

b)

by increasing the friction between the machine and the object

c)

by adding more work on the object than originally applied

d)

by removing the force of gravity on the object

96.

Simple machines can make work easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?

a)

The distance the object is moved is increased.

b)

The distance the object is moved is decreased.

c)

The amount of work is increased.

d)

The amount of work is decreased.

97.

Which of the following is NOT one of the things a machine can do?

a)

Changes the amount of force required.

b)

Changes the distance over which the force is exerted.

c)

Changes the direction of the force.

d)

Changes the amount of work done.

98.

What is the formula needed to solve for work?

a)

w = f/d

b)

w = f*d

c)

w = f+d

99.

If you push a cart with a force of 60 N for 2 m, how much work have you done?

a)

120 J

b)

30 J

c)

120 N

d)

30 N

100.

Two people shove on a wall with 100 N of force. The wall does not move. How much work have they done?

a)

100J

b)

100N

c)

0J

d)

0N

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