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Physics revision - KS4

Total questions: 47

Worksheet time: 35mins

Name
Class
Date
1.

What colour is the live wire in a three pin plug?

(a)  

2.

What colour is the neutral wire in a three pin plug

(a)  

3.

Green and yellow is colour for (a)   wire

4.
Electric current is measured in ______.
a)
Watts
b)
Volts
c)
Amperes
5.

This is the symbol for a...

a)

Light Emitting Diode

b)

Fuse

c)

Fixed Resistor

d)

Variable Resistor

6.

What is the name given to part a?

a)

Earth wire

b)

Fuse

c)

Live wire

d)

Neutral wire

7.

Which wire should the fuse be connected to?

a)

Earth wire to create a surge if a fault occurs

b)

Live wire to break the circuit if a fault occurs

c)

Neutral wire to draw all the current away from the appliance if a fault occurs

d)

None of the above

8.
What is the structure of an alpha particle?
a)
An electron
b)
A neutron
c)
Two protons and two neutrons. This is the same as a helium nucleus.
d)
An electromagnetic wave
9.
What charge is an alpha particle?
a)
It's a wave, it has no charge
b)
Neutral (no charge)
c)
Positively charged.
d)
Negatively charged.
10.
In the equation,  146C --> 147N + 0-1B, the _______ decay of radioactive carbon-14 results in the creation of a new nitrogen-14 atom.
a)
Radioactive
b)
Beta
c)
Alpha
d)
Gamma
11.
What is emitted during Beta Radiation?
a)
A high-energy Electron.
b)
Protons.
c)
Neutrons.
d)
Nuclei
12.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
13.
Complete the nuclear equation and determine the type of decay that is occurring in this reaction. 
a)
alpha
b)
beta
c)
gamma
d)
none
14.
What type of decay?
a)
alpha
b)
beta
c)
gamma
15.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
16.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
ions
d)
reaction partners
17.

What do these isotopes of carbon all have in common?


126C, 136C, 146C

a)

they all have the same number of neutrons & mass number

b)

they all have the same atomic number and neutrons

c)

they all have the same atomic number and electrons

d)

they all have the same number of protons, atomic number, and mass number

18.

What happens to resistance when the length of the wire increases?

a)

Stays the same

b)

Increases

c)

Decreases

19.

How do you calculate resistance?

a)

Current x Voltage

b)

Voltage x Power

c)

Voltage ÷ Current

d)

Current ÷ Voltage

20.

Why should you switch off the power between taking readings?

a)

The wire will break

b)

The power will run out

c)

The wire will get hot

d)

To stop wasting energy

21.

What effect does a hotter temperature have on resistance?

a)

No effect

b)

Increases resistance

c)

Decreases resistance

d)

Stays the same

22.

How do you calculate current from voltage and resistance?

a)

Current = voltage x resistance

b)

Current = resistance x power

c)

Current = voltage ÷ resistance

d)

Current = resistance ÷ voltage

23.

What is the resistance if the current is 2A and the voltage is 10V?

a)

8 Ω

b)

20 Ω

c)

12 Ω

d)

5 Ω

24.

Jayden Forde has four grades from tests in Math class. They are all weighted equally. If Jayden's grades are 100, 96, 96, and 100, what Jeff's current average grade?

a)

392

b)

97

c)

98

d)

100

25.

Find the mean:

28, 18, 19, 18, 17

(a)  

26.

What is another word for AVERAGE?

a)

Mode

b)

Median

c)

Mean

d)

Not nice

27.
The variable the is changed on purpose is..
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
28.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as 
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
29.
  Pick the control from the following variables..
vanilla ice cream
vanilla ice cream with sprinkles
vanilla ice cream with hot fudge & caramel
a)
Vanilla ice cream
b)
vanilla ice cream with sprinkles
c)
vanilla ice cream with hot fudge & caramel
d)
I like it all
30.
Mrs. Goodwyn wants to see if studying time affects test scores...She gives all 6 classes the same assignment but assigns different study times. What is the independent variable?
a)
Study time
b)
Test score
c)
Same assignment
31.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
32.

What is a renewable resource?

a)

A resource you can reuse over and over

b)

An object you cannot replace

c)

Fossil fuels

d)

A resource that has a nearly unlimited supply

33.

All of the following are considered renewable energy sources EXCEPT –

a)

Wind

b)

Coal

c)

Biomass

d)

Solar

34.
What is the unit for measuring energy?
a)
Newton
b)
Kilogram
c)
Joule
d)
Jewel
35.
What is the name for energy stored in a hot object?
a)
Thermal
b)
Potential
c)
Fire
d)
Electrical
36.
What are the energy transfers when a ball bounces?
a)
kinetic → heat → kinetic
b)
kinetic → sound → gravitational
c)
kinetic → elastic → kinetic
d)
elastic → kinetic → elastic
37.

What is the energy transfer for a lightbulb?

a)

Electrical -> Elastic

b)

Electrical -> Thermal

c)

Magnetic -> Elastic

d)

Gravitational -> Chemical

38.

What is the energy transfer for a sky diver?

a)

Gravitational potential -> Kinetic

b)

Gravitational potential -> Thermal

c)

Thermal -> Elastic

d)

Chemical -> Gravitational potential

39.
Which description best matches this particle model?
a)
Closely packed and can't move a lot. 
b)
Particles are close together but can move a little. 
c)
Particles have lots of energy and can move around. 
40.
Which description best matches this particle model?
a)
Closely packed and can't move a lot. 
b)
Particles are close together but can move a little. 
c)
Particles have lots of energy and can move around. 
41.
Which description best matches this particle model?
a)
Closely packed and can't move a lot. 
b)
Particles are close together but can move a little. 
c)
Particles have lots of energy and can move around. 
42.
Which description best describes what a particle model shows?
a)
How many particles are in a solid, liquid or gas.
b)
How the particles in a solid, liquid or gas are arranged. 
c)
If there are any particles in a solid liquid or gas. 
43.
Plastic is a conductor.
a)
True
b)
False
44.
Plastic is a conductor.
a)
True
b)
False
45.
Thermal conductivity is....
a)
How fast heat passes through something
b)
How hot certain materials get
c)
Something that doesn'treadily allow heat to pass theough
d)
Metals
46.
Water heaters have plastic on the inside because it conducts heat.
a)
True
b)
False
47.

The SI units J/g°C measures

a)

Specific heat

b)

mass

c)

temperature

d)

heat energy

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