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Worksheets2021 Y9 LC4 Physics Assessment
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
What can be found in the nucleus of an atom?
a)
Protons and Neutrons
b)
Protons, Neutrons and Electrons
c)
Protons
d)
Neutrons and Electrons
e)
Alpha Particles
2.
What is the proper name for where electrons can be found in an atom?
a)
Electron Shells
b)
Orbiting
c)
Nucleus
d)
Energy Shields
e)
Power Levels
3.
Name the lead scientist responsible for the discovery of the electron.
a)
J.J Thomson
b)
Ernest Rutherford
c)
James Chadwick
d)
Niels Bohr
4.
What is the average diameter of an atom
a)
0.1 mm
b)
0.1 um
c)
0.1 nm
d)
0.1 fm
5.
Democritus came up with the word "atomos" which is where the word "atom" is derived from. What is the original meaning of atomos?
a)
Indivisible
b)
Individual
c)
Microscopic
d)
Muriatic Sphere
e)
Unknown
6.
Define the term isotope
a)
Atoms of the same element with a different atomic mass
b)
Atoms of different element with the same atomic mass
c)
Atoms of the same element with the same atomic mass
d)
Atoms of different element with different atomic mass
7.
What is the relative charge of a Beryllium atom with 4 protons, 3 neutrons and 2 electrons
a)
2+
b)
1+
c)
0
d)
1-
e)
2-
8.
What is the difference between Uranium-235 and Uranium-239?
a)
4 Neutrons
b)
4 Protons
c)
4 total of either protons or neutrons
d)
An alpha particle
9.
How many protons, neutrons and electrons are in this atom?
a)
P = 95, N = 146, e = 95
b)
P = 95, N = 95, e = 95
c)
P = 241, N = 241 e = 95
d)
P = 146, N = 95, e = 95
e)
P = 241, N = 241, e = 95
10.
Which of the following are an isotope pair?
a)
Pt-195 and Pt-193
b)
Pt-195 and Cu-64
c)
Cu-64 and Zn-64
d)
Water and Carbon Dioxide
11.
Which of the following is NOT a type of nuclear radiation
a)
Proton
b)
Alpha
c)
Beta
d)
Gamma
e)
Neutron
12.
A radioactive sample is placed 1 cm away from a Geiger Counter (a device that measures radiation). Which form radiation will it detect?
a)
All of them
b)
Alpha
c)
Beta
d)
Gamma
13.
The most dangerous form of radiation if the source is inside the human body
a)
Alpha
b)
Beta
c)
Gamma
d)
All of them
14.
This form of radiation has the longest range in air and is a wave rather than a particle
a)
Alpha
b)
Beta
c)
Gamma
d)
All of them
15.
A piece of radiation is deflected by a magnetic field before passing through a piece of paper. Which type is it?
a)
Beta
b)
Alpha
c)
Gamma
d)
Neutron
16.
Which property of nuclear radiation has the biggest influence on its ionising power?
a)
Charge
b)
Mass
c)
Diameter
d)
Spin
17.
An alpha particle is identical to a...
a)
Helium Nucleus
b)
Fast moving electron
c)
Wave
d)
Helium Atom
18.
Alpha sources of radiation were often used in smoke detectors. What made them well suited to this application?
a)
They were stopped by the presence of smoke
b)
They only have a short range in air
c)
They are the best at ionising the smoke particles
d)
They could be manipulated by the magnetic field of the detector
19.
What happens in the nucleus that causes it to emit an electron?
a)
A proton changes into a neutron
b)
A neutron turns into a proton
c)
A neutron makes a copy of itself
d)
A proton makes a copy of itself
20.
Why can gamma radiation pass through sheets of metal easily but beta cannot?
a)
Gamma is more penetrating
b)
Gamma has a longer range
c)
Gamma is less likely to ionise
d)
Gamma doesn't have a charge
21.
Which of the following is a renewable energy resource?
a)
Biomass
b)
Nuclear
c)
Oil
d)
Coal
e)
Gas
22.
Which of the following is the least reliable energy resource?
a)
Solar
b)
Wind
c)
Nuclear
d)
Hydroelectric
e)
Gas
23.
Why do solar panels on homes help reduce the environmental impact of using electrical devices?
a)
Less fossil fuels are being burned
b)
Less electricity is being used
c)
Electricity from solar panels is cheaper
d)
Solar energy is easier to access than other resources
24.
Look at this table of energy resources in the U.K. Calculate the value for X
a)
0.23
b)
0.4
c)
0.77
d)
0.15
25.
An advantage of pumped storage hydroelectric power stations is the short start-up time they have. Why is a short start-up time important?
a)
Surge to meet demand
b)
Provide energy at a steady rate
c)
Less fossil fuels are being used
d)
Highly reliable source of renewable energy
26.
Select the option that contains all of the parts of the National Grid
a)
Step-up transformers, Transmission cables, Step-down transformers
b)
Step-up transformers, and Step-down transformers
c)
Power stations, Step-up transformers, Transmission cables, Step-down transformers
d)
Power stations, Step-up transformers, Transmission cables, Step-down transformers, Houses and Factories
27.
How is electrical power transmitted across the National Grid to make the process as efficient as possible?
a)
At a high potential difference and a high current
b)
At a high potential difference and a low current
c)
At a low potential difference and a high current
d)
At a low potential difference and a low current
28.
Transmission cables are made of low resistance wire. Explain why it is better to use a cable with a low resistance than to use a cable with a high resistance.
a)
It is more efficient as less power is dissipated as heat
b)
It is more efficient as less energy is lost
c)
It allows for less current to flow which will increase the charging time
d)
This fact is incorrect and the transmission cable are made of high resistance wire
29.
A step-up transformer...
a)
Increases the potential difference and decreases the current
b)
Increases the potential difference and maintains the current
c)
Decreases the potential difference and increases the current
d)
Maintains the potential difference and decreases the current
30.
Why does a nuclear power station not produce any carbon dioxide?
a)
The fuel is not burned
b)
Radioactive material is always contained
c)
Nuclear radiation ionises the carbon dioxide particles
d)
Nuclear reactors are submerged underwater
31.
At what frequency is mains voltage?
a)
230V
b)
240V
c)
50 Hz
d)
60 Hz
32.
What part of a UK plug is designed to break if the current goes to high?
a)
Fuse
b)
Cable Grip
c)
Earth Wire
d)
Neutral Pin
33.
What is the function of the neutral wire?
a)
To complete the circuit and be at 0V
b)
To provide the electrical power at 230V
c)
Its a safety feature that prevents electric shocks
d)
Unnecessary in most plugs if the device is made of plastic
34.
Which of the following materials would be a suitable replacement to make a plug casing out of?
a)
Aluminium
b)
Sponge
c)
Paper
d)
Wood
e)
None
35.
A battery supplies direct current. What is direct current?
a)
Current that always passes in the same direction
b)
Current that changes direction 50 times each second
c)
Current that does not have a direction
d)
Current that can only support a low potential difference
36.
What is the name of this component?
a)
Light dependent resistor
b)
Thermistor
c)
Variable resistor
d)
Light Emitting Diode
e)
Diode
37.
What circuit component would you use if you needed to measure the potential difference?
a)
Voltmeter
b)
Ammeter
c)
Newtonmeter
d)
Kilometer
38.
How much charge flows through a circuit if 2.7 A flows for 1 hour?
a)
2.7 C
b)
162 C
c)
9720 C
d)
583200 C
39.
Which of the following are true?
a)
The current is the same through each component in a series circuit.
b)
Potential difference is shared between components in a series circuit.
c)
The current is the same through each component in a parallel circuit.
d)
Potential difference is shared between components in a parallel circuit.
40.
There is a bulb in a circuit. What happens when you add a second bulb in parallel to the first?
a)
The second bulb will be as bright as the first because they both get full power
b)
The first bulb gets brighter
c)
The circuit will no longer work
d)
Both bulbs will be half as bright because the voltage is divided by two now
41.
The resistance of the component
a)
is always constant as the p.d. increases
b)
starts high and then decreases as the p.d. increases
c)
starts constant for low values of p.d. and then increases as the p.d. increases
d)
starts constant for low values of p.d. and then decreases as the p.d. increases
42.
What is an Ohmic Conductor?
a)
One where the resistance remains constant.
b)
One where the resistance changes at a constant rate.
c)
One where the resistance is directly proportional to the current flowing.
d)
One where the resistance is proportional to the potential difference.
43.
A battery provides a voltage of 1.5 V in a circuit that has a resistance of 0.1 kΩ. What current will flow in the circuit?
a)
0.015 A
b)
15 A
c)
1.5 A
d)
0.15A
44.
A laptop is rated at 2.3A and 15V. How much power does it use? Give your answer to 2s.f.
a)
34.5 W
b)
34 W
c)
35 W
d)
40 W
45.
To the nearest whole number, what is the current flowing through a bulb with a power rating of 100W and a resistance of 15 Ohms?
a)
7 A
b)
3 A
c)
2 A
d)
1500 A
46.
This pendulum will swing back and forth forever if there is no friction. Which of the following statements is incorrect?
a)
The pendulum has the most kinetic energy at position 2.
b)
The amount of KE it has at position 2 is equal to the GPE at position 3.
c)
It has equal amounts of GPE at positions 1 and 3.
d)
It is travelling slowest at position 2
47.
What store of energy is at its maximum when a bungee jumper is at the lowest part of their jump?
a)
Elastic Potential Energy
b)
Kinetic Energy
c)
Gravitational Potential Energy
d)
Thermal Energy
48.
Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level.
a)
250,000 J
b)
2,450,000 J
c)
2,451,663 J
d)
248 J
49.
Lily's cat ran through your yard. The cat has a mass of 5 kg. He is running at a speed of 3 m/s. What is the kinetic energy of the cat as he runs?
a)
8.5 J
b)
45 J
c)
7.5 J
d)
22.5 J
50.
A machine transfers 150kJ of energy over 2 minutes. How powerful is it?
a)
1250 W
b)
75 W
c)
1.25 W
d)
300 W
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