PHYSICS GCSE END EXAM. SAMPLE EXAM REVISION
PRACTICE QUESTIONS WITH CORRECT ANSWERS (2024
UPDATE)
Speed, Velocity and Acceleration - ANSWER- speed = distance/time
acceleration = change in velocity/time
velocity = speed in a specified direction
Mass and Weight - ANSWER- Mass measures the amount of matter in an object
Weight is the force of gravity acting on an object
density = mass/volume
Forces and Change of Motion - ANSWER- Resultant force: gives an acceleration to an object.
If object is stationary, it will gain speed. If object is moving, it will gain or lose speed depending
on the direction of the force.
Planet in orbit: gravitational force towards sun
Car turning a corner: friction force
Ball on a length of string: string tension
Work and Power - ANSWER- Work is done when a force moves through a distance
The greater the force, the more work
Work done = force x distance moved in direction of force
, Power is the rate of doing work
The greater the work done in a given time, the greater the power
Power = work done/time taken
Pressure - ANSWER- Pressure on a surface is the force exerted on a given area
The greater the force on a given area, the greater the pressure
The smaller the area the given force acts upon, the greater the pressure
Pressure = force/area
Barometers are used to measure atmospheric pressure in millimetres of mercury, which is given
by the height of the mercury column.
Changes of State - ANSWER- Boiling: occurs at a definite temperature called the boiling point.
Bubbles/vapour form in the liquid and rise.
Condensation: occurs when gas or vapour molecules return to liquid state.
Melting: takes place at a definite temperature called the melting point. Energy is provided to break
bonds between molecules.
Solidification: occurs when molecules of a liquid returns to solid state. This takes place at freezing
point.
Gas Pressure - ANSWER- At a constant temp, gas molecules move at a constant average speed,
so the force from each collision is the same.
Smaller volume = increase in pressure
PRACTICE QUESTIONS WITH CORRECT ANSWERS (2024
UPDATE)
Speed, Velocity and Acceleration - ANSWER- speed = distance/time
acceleration = change in velocity/time
velocity = speed in a specified direction
Mass and Weight - ANSWER- Mass measures the amount of matter in an object
Weight is the force of gravity acting on an object
density = mass/volume
Forces and Change of Motion - ANSWER- Resultant force: gives an acceleration to an object.
If object is stationary, it will gain speed. If object is moving, it will gain or lose speed depending
on the direction of the force.
Planet in orbit: gravitational force towards sun
Car turning a corner: friction force
Ball on a length of string: string tension
Work and Power - ANSWER- Work is done when a force moves through a distance
The greater the force, the more work
Work done = force x distance moved in direction of force
, Power is the rate of doing work
The greater the work done in a given time, the greater the power
Power = work done/time taken
Pressure - ANSWER- Pressure on a surface is the force exerted on a given area
The greater the force on a given area, the greater the pressure
The smaller the area the given force acts upon, the greater the pressure
Pressure = force/area
Barometers are used to measure atmospheric pressure in millimetres of mercury, which is given
by the height of the mercury column.
Changes of State - ANSWER- Boiling: occurs at a definite temperature called the boiling point.
Bubbles/vapour form in the liquid and rise.
Condensation: occurs when gas or vapour molecules return to liquid state.
Melting: takes place at a definite temperature called the melting point. Energy is provided to break
bonds between molecules.
Solidification: occurs when molecules of a liquid returns to solid state. This takes place at freezing
point.
Gas Pressure - ANSWER- At a constant temp, gas molecules move at a constant average speed,
so the force from each collision is the same.
Smaller volume = increase in pressure
