AQA PHYSICS QUESTIONS AND MARKING SCHEME
, 1. What are the uses of radiation?
a) Heating and cooling systems
b) Smoke detectors, tracers in medicine, radiotherapy, sterilization of food and surgical instruments
c) Electricity generation only
d) Space exploration only
Correct Answer: b) Smoke detectors, tracers in medicine, radiotherapy, sterilization of food and
surgical instruments.
Explanation: Radiation is widely used for medical, industrial, and safety purposes due to its ability
to detect, sterilize, and treat.
2. What do voltmeters do?
a) Measure potential difference in a circuit and must be placed in parallel around a component
b) Measure current and are placed in series in a circuit
c) Measure resistance directly in a circuit
d) Calculate energy consumption in a circuit
Correct Answer: a) Measure potential difference in a circuit and must be placed in parallel around a
component.
Explanation: Voltmeters are connected in parallel to measure the voltage without interfering with
the current flow in the circuit.
3. How do you work out the speed?
a) Speed = Distance ÷ Time
b) Speed = Force × Distance
c) Speed = Mass × Acceleration
d) Speed = Time ÷ Distance
Correct Answer: a) Speed = Distance ÷ Time.
Explanation: Speed is the rate of distance covered per unit time, calculated using the formula
Speed=DistanceTime\text{Speed} = \frac{\text{Distance}}{\text{Time}}Speed=TimeDistance.
, 1. What are the uses of radiation?
a) Heating and cooling systems
b) Smoke detectors, tracers in medicine, radiotherapy, sterilization of food and surgical instruments
c) Electricity generation only
d) Space exploration only
Correct Answer: b) Smoke detectors, tracers in medicine, radiotherapy, sterilization of food and
surgical instruments.
Explanation: Radiation is widely used for medical, industrial, and safety purposes due to its ability
to detect, sterilize, and treat.
2. What do voltmeters do?
a) Measure potential difference in a circuit and must be placed in parallel around a component
b) Measure current and are placed in series in a circuit
c) Measure resistance directly in a circuit
d) Calculate energy consumption in a circuit
Correct Answer: a) Measure potential difference in a circuit and must be placed in parallel around a
component.
Explanation: Voltmeters are connected in parallel to measure the voltage without interfering with
the current flow in the circuit.
3. How do you work out the speed?
a) Speed = Distance ÷ Time
b) Speed = Force × Distance
c) Speed = Mass × Acceleration
d) Speed = Time ÷ Distance
Correct Answer: a) Speed = Distance ÷ Time.
Explanation: Speed is the rate of distance covered per unit time, calculated using the formula
Speed=DistanceTime\text{Speed} = \frac{\text{Distance}}{\text{Time}}Speed=TimeDistance.
