AQA GCSE Triple Physics - Specimen Paper 1

Front

What is the extension of a spring?

Back

The extension of a spring is the amount by which it is stretched or compressed from its original length, measured in units such as centimeters or millimeters.

Front

What evidence shows that sound waves travel through air and not the air itself?

Back

A vibrating drum skin does not move the air away to make a vacuum, indicating that it is the wave that travels.

Front

How can scientists calculate an accurate value for the speed of a neutrino?

Back

By adding on 60 nanoseconds to each time recorded and recalculating.

Front

What does the expanding balloon model represent in terms of the universe?

Back

As the balloon expands, the dots on its surface get further apart, representing galaxies moving apart in an expanding universe.

Front

How can you demonstrate that a magnetic field is produced around a wire?

Back

By moving a magnetic compass around the wire; the changing direction of the compass needle indicates a magnetic field.

Front

What is the definition of a neutrino?

Back

A neutrino is a subatomic particle with a very small mass and no electric charge, which interacts only via the weak nuclear force.

Front

What is the principle of superposition in wave theory?

Back

The principle of superposition states that when two or more waves overlap, the resultant wave is the sum of the individual waves.

Front

What is the relationship between frequency and wavelength in a wave?

Back

The speed of a wave is equal to the frequency multiplied by the wavelength; as frequency increases, wavelength decreases.

Front

What is the significance of the Big Bang theory?

Back

The Big Bang theory explains the origin of the universe as a rapid expansion from a hot, dense state.

Front

What is the definition of a magnetic field?

Back

A magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.