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Worksheetspaper 1 physics
Total questions: 61
Worksheet time: 34mins
What happens to the amount of energy in a car's kinetic energy store when the car slows down?
It stays the same
It decreases
Which of the following would decrease the rate of cooling of a garage?
Decreasing the thickness of its walls.
Increasing the thickness of its walls.
When an apple falls from a tree, energy is transferred...
...away from its gravitational potential energy store.
...to its gravitational potential energy store.
When an apple falls from a tree, energy is transferred...
...away from its gravitational potential energy store.
...to its gravitational potential energy store.
Which of these is a disadvantage of using wind turbines to generate electricity?
They produce dangerous waste that is difficult to dispose of.
They release atmospheric pollution (CO2) when running.
They can be noisy.
Which of these is a disadvantage of using wind turbines to generate electricity?
They produce dangerous waste that is difficult to dispose of.
They release atmospheric pollution (CO2) when running.
They can be noisy.
The amount of energy transferred by an appliance depends on...
...its power and size.
Its power and the time it is on for.
4 J of energy is supplied to a device with an efficiency of 50%. What is the useful output energy transfer of the device?
2 J
4 J
6 J
8 J
The amount of energy transferred by an appliance depends on...
...its power and size.
Its power and the time it is on for.
When a racket hits a ball, energy is transferred from the racket's kinetic energy store to the ball's kinetic energy store. This energy is transferred...
...by heating.
...mechanically.
Two materials are cooled by 10° C. They have the same mass and different specific heat capacities. Which material emits more energy.
The material with the higher specific heat capacity.
The material with the lower specific heat capacity.
Power is the...
...energy of a moving object.
...rate of doing work.
When a spring is compressed, which of these energy stores is energy transferred to?
The spring's elastic potential energy store.
The spring's nuclear energy store.
What is the name of a system in which there is no net change in the total energy?
A closed system
An open system
A mechanical system
Electric heater A has a power rating of 1 kW. Electric heater B has a power rating of 880 W. Which transfers the most energy in 2 hours?
Heater A
Heater B
The rate of energy transfer from a house can be reduced by...
...having walls with a low thermal conductivity.
...having walls with a high thermal conductivity.
Pick a suitable option that cab be used to reduce unwanted energy transfers in a battery-powered toy car.
Insulate the car.
Increase the input energy to the car.
Lubricate any moving parts in the car.
Which of the following is a possible reason for why we continue to use non-renewable resources?
Because non-renewable resources will never run out.
Because non-renewable resources are more reliable than renewable alternatives.
A cannon uses explosives to launch a ball into the air. Which is a wasteful energy transfer that occurs when the cannon is fired?
Chemical energy store of explosives > Kinetic energy of the ball
Chemical energy store of explosives > Thermal energy store of ball
Which of the following is a device that emits light?
Fuse
LDR
LED
In the UK, what is the typical potential difference between the live wire and earth wire in an electrical appliance?
230 V
12 V
0 V
The purpose of the earth wire in an appliance is...
...to carry the alternating potential difference from the supply.
...to carry the alternating potential difference away from the appliance.
...to stop the appliance becoming live.
True of False? "Two components connected in parallel will each have the same potential difference across them."
True
False
True or False? "The UK mains electricity supply is direct current."
True
False
True or False? "In a series circuit, the power supply's potential difference is shared between all components."
True
False
What type of resistor can be sued in lights that turn on automatically when it gets dark?
Thermistor
LDR
What is the name for electric current that is constantly changing direction?
Alternating current (ac)
Direct current (dc)
Switching current (sc)
When two resistors are connected in parallel, their combined resistance is...
...lower than it would be if they were connected in series.
...higher than it would be if they were connected in series.
...the same as it would be if they were connected in series.
Which wire inside a three-core cable is coated with blue plastic?
Earth
Live
Neutral
True of False? "Liquids are generally denser than solids."
True
False
What is the specific latent heat of fusion?
The amount of energy needed to melt 1 kg of a substance.
The amount of energy needed to boil 1 kg of a substance.
What us the specific heat capacity of a substance?
The energy released by a substance when it freezes.
The energy needed to raise the temperature of 1 kg of a substance by 1°C.
What happens to the mass of a substance when it changes from a solid to a liquid?
It increases
It decreases
It stays the same
What will happen to the pressure of a fixed volume of gas if its temperature is increased?
It will decrease
It will increase
What is the name for atoms with the same number of protons but different numbers of neutrons?
Ions
Isotopes
True or False? "Living cells can be damaged by ionising radiation".
True
False
Which type of radiation can penetrate the furthest into materials?
Alpha
Beta
Gamma
Which of the following gives the number of neutrons in the nucleus of an atom?
The mass number
The mass number - the atomic number
The mass number + the atomic number
What happens to the resistance of a filament lamp as the temperature of the filament increases?
In increases
It decreases
It stays the same
Which of the following changes in state is called 'sublimation'?
Gas to liquid
Solid to gas
Solid to liquid.
When a gas turns into a liquid, the particles move faster and further apart.
Which phase is represented in the model.
Solids
Liquids
Gas
Carousso
