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Year 9 Physics Revision

Total questions: 75

Worksheet time: 3580secs

Name
Class
Date
1.
What is a battery?
a)
switch
b)
power source
c)
insulator
2.
A complete circuit has .......
a)
a motor in it
b)
a switch in it
c)
two bulbs in it
d)
no breaks in it
3.
This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -
a)
the switch gives energy to the battery
b)
the buzzer is made of special plastic
c)
the wires are cooled by the surrounding air
d)
electricity can flow in a complete path
4.
What material would be safest to use as an insulator to cover electrical wires?
a)
rubber
b)
tin
c)
aluminum
d)
water
5.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
6.
This image represents what type of circuit?
a)
open
b)
closed
c)
series
d)
parallel
7.
Will the light bulb in this circuit light and why/why not?
a)
yes, because it has two batteries
b)
no, because the switch is open
c)
yes, because it is in a circuit
d)
no, because the bulb is burned out
8.
If bulb 1 burns out, what will occur?
a)
bulbs 2 and 3 will go out
b)
bulbs 2 and 3 receive more volts
c)
bulbs 2 and 3 will stay lit
d)
nothing will happen
9.

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

10.

Conventionally, current is described as flowing from the ................ terminal of a battery to the ................ terminal.

a)

Negative.....negative

b)

Negative....positive

c)

Positive......negative

d)

Positive....positive

11.

In the circuit, the bulb lights up because there is ............... flowing in the closed circuit.

a)

battery

b)

current

c)

resistance

d)

voltage

12.

In the circuit, the bulb lights up because there is ............... flowing in the closed circuit.

a)

battery

b)

current

c)

resistance

d)

voltage

13.

Current can be measured using ............

a)

ammeter

b)

light bulb

c)

resistor

d)

voltmeter

14.

Voltage can be measured using ............

a)

ammeter

b)

light bulb

c)

resistor

d)

voltmeter

15.

An ammeter is connected in ...........

a)

Parallel

b)

Series

16.

A voltmeter is connected in ...........

a)

Parallel

b)

Series

17.

This is the symbol for

a)

ammeter

b)

light bulb

c)

resistor

d)

voltmeter

18.

This is the symbol for

a)

ammeter

b)

light bulb

c)

resistor

d)

voltmeter

19.

SI unit of resistance is

a)

ampere

b)

metre

c)

ohm

d)

volt

20.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
21.
If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?
a)
5 V
b)
12 V
c)
0.2 V
d)
20 V
22.
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts
a)
15 Ohms
b)
4 Ohms
c)
0.3333 Ohms
d)
2 Ohms
23.

The table describes four different resistance wires.


They are all made from the same metal.


Which wire has the smallest resistance?

a)

A

b)

B

c)

C

d)

D

24.

Which equation can be used to calculate the resistance R of a resistor?

a)

V = I / R

b)

I = V x R

c)

R = V x I

d)

V = I x R

25.
Wind blowing at 20 mph.Vector or scalar?
a)
Scalar
b)
Vector
26.
30 m/sec, East. Scalar or Vector
a)
Scalar
b)
Vector
c)
Neither
27.
A deer running 15 meters per second due west.Vector or scalar?
a)
Scalar
b)
Vector
28.
Distance and direction of an object's change in position from a starting point
a)
displacement
b)
distance
c)
motion
d)
reference point
29.

What is this graph showing?

a)

Gradually slowing down

b)

Gradually speeding up

c)

Constant speed

d)

Stopped

30.

What is this graph showing?

a)

At rest

b)

Acceleration

c)

Constant speed of 1 m/s

d)

Gradually speeding up

31.

What is this graph showing?

a)

Constant speed

b)

Gradually speeding up

c)

Gradually slowing down

d)

At rest

32.
a)

Accelerating gradually

b)

Stopping

c)

Slowing down constantly

d)

Speeding up constantly

33.

What is this graph showing?

a)

Fast constant speed

b)

Slow constant speed

c)

At rest

d)

Accelerating

34.

What is this graph showing?

a)

Two objects speeding up constantly

b)

Two objects slowing down constantly

c)

Two objects accelerating

d)

Two objects at rest

35.

What is the graph showing?

a)

Slowing down moving toward start

b)

Speeding up moving toward start

c)

Slowing down moving away from start

d)

Speed up moving away from start

36.
a)
b)
c)
d)
37.
Which runner won the race?
a)
A
b)
B
c)
C
38.
Which runner had a head start?
a)
A
b)
B
c)
C
39.
How long did it take this object to travel 10 m?
a)
0 s
b)
10 s
c)
15 s
d)
20 s
40.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
41.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
42.

Which of the following is the correct equation for calculating SPEED?

a)

s = d / t

b)

s = d x t

c)

s = t / d

d)

s = d - t

43.

How do you find the speed from a distance-time graph?

a)

Find the area under the graph

b)

Find the gradient of the line

c)

Read the height of the graph

44.

How do you find the distance travelled from a speed-time graph?

a)

Find the gradient

b)

Find the area under the graph

c)

Read the height of the graph

45.

How long is the train stopped for in total?

a)

5 minutes

b)

7.5 minutes

c)

10 minutes

d)

2.5 minutes

46.

Calculate the acceleration of the train at 2.5 minutes

a)

1 km/m2

b)

3.33 km/m2

c)

0.3 km/m2

d)

7.5 km/m2

47.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

48.

Mr. Pransky wants to see how different surfaces affect how high a tennis ball can bounce. What is the independent variable?

a)

the different surfaces

b)

using the same ball

c)

how high they bounce

49.

A student wants to test the hypothesis of "If salt is added to water then the boiling point of water will decrease (go down)." What is the independent variable?

a)

Whether salt is added or not

b)

Boiling Point

c)

Amount of water

50.

What are the constant variables?

a)

what we are changing or testing

b)

what we are observing or measuring

c)

what we keep the same to make the experiment fair

51.
State the planets in order starting with the one closest to the sun
a)
Mercury, Venus, Earth, Saturn, Uranus, Neptune,Mars, Jupiter
b)
Jupiter, Saturn, Uranus, Neptune, Mercury, Venus, Earth, Mars
c)
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
d)
Earth, Jupiter, Mars, Mercury, Neptuune Saturn, Uranus, Venus
52.
Place in order of size Galaxy, Moon, Universe, Star, planet
a)
Planet, Moon, Star, Galaxy, Universe
b)
Universe, Star, Planet, Moon, Galaxy
c)
Moon, Planet, Star, Galaxy, Universe
53.

An object that orbits a planet is a

a)

Orbiter

b)

Satellite

c)

Planetoid

54.

Why do satellites orbit a planet?

a)

The force of gravity pulling inwards is always perpendicular to the satellite's velocity

b)

The centripetal force is always parallel to the satellite's velocity

c)

The object travels at a very fast angular velocity

55.

The equation for orbital speed is

a)

2πd/T

b)

ΨρφγΦ^2/(κ^3.πλ)

c)

πr/T

d)

2πr/T

56.

The planet with the slowest orbital speed is

a)

Neptune

b)

Uranus

c)

Saturn

d)

Pluto

57.

Planets follow ________ orbits

a)

Circular

b)

Oblong

c)

Elliptical

d)

Triangular

58.
A car going around a roundabout at constant speed is accelerating.
a)
False
b)
True
59.

How much gravity an object has depends on its _________.

a)

Weight

b)

Speed

c)

Momentum

d)

Mass

60.

When will gravity be the strongest?

a)

The further away you are from an object

b)

The closer you are to an object

c)

The faster your relative speed is to an object

d)

None of the above

61.

Which of the following has the strongest gravitational pull?

a)

A bowling ball

b)

A car

c)

The Earth

d)

The Sun

62.

What do we call the force of gravity on an object?

a)

Weight

b)

Mass

c)

Speed

d)

Acceleration

63.

Weight is a force that depends on mass and:

a)

friction

b)

gravity

c)

magnetism

d)

energy

64.

Compared to your weight and mass on Earth, if you were on the moon:

a)

your weight and mass would be less.

b)

your weight would be less but your mass would remain the same.

c)

your weight would remain the same, but your mass would be less.

d)

your weight would be greater, but your mass would remain the same.

65.

What is the weight of your backpack in Newtons? The mass of your backpack is 10 kg. (assume: g = 9.8 m/s2)

a)

10 N

b)

9.8 N

c)

98 N

d)

980 N

66.

The correct equation to solve for weight in Newtons is:

a)

W = m/g

b)

W = g/m

c)

W = grams

d)

W = mg

67.

Calculate the weight in Newton's of the small stack of textbooks. (Mass = 3 kg; Assume on Earth g = 9.8 m/s2)

a)

0.306 N

b)

3 N

c)

29.4 N

d)

58.8 N

68.

On Earth, the acceleration due to gravity is constant. Without air resistance, objects will fall to the ground at the same acceleration.

a)

True

b)

False

69.

The acceleration due to gravity on Earth is .....

a)

g = 1.6 m/s2

b)

g = 3.8 m/s2

c)

g = 9.8 m/s2

d)

g = 24.6 m/s2

70.
True or False:  The density of a specific type of material never changes.  
a)
True
b)
False
71.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
72.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1, 
d)
4, 3, 1, 2
73.
What is this tool to get volume?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
74.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
75.
Calculate the density of the cube.
a)
3 g/cm3
b)
4 g/cm3
c)
2 g/cm3
d)
5 g/cm3

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