N(A)-Level Combined Science, Physics: Waves, Electricity and Magnetism module quiz (SEAB 5105/5106) quiz

The distance between two wave crests

The height of the wave

The number of waves passing a point each second

The speed of the wave

speed = frequency divided by wavelength

speed = amplitude times frequency

speed = wavelength divided by frequency

speed = frequency times wavelength

100 m/s

25 m/s

4 m/s

0.25 m/s

Because a vacuum is too cold

Because sound is a wave that needs a medium to travel through

Because sound travels only as light

Because a vacuum absorbs all sound instantly

always larger than the angle of reflection

always smaller than the angle of reflection

equal to the angle of reflection

unrelated to the angle of reflection

Light bouncing off a mirror

Light splitting into electricity

Light being absorbed by a black surface

Light changing direction as it passes from one medium to another because its speed changes

X-rays

Sound waves

Water waves

Seismic waves

The energy stored in a battery

The rate of flow of charge

The resistance of a wire

The number of bulbs in a circuit

voltage = current divided by resistance

current = voltage times resistance

voltage = current times resistance

resistance = voltage times current

0.33 ohms

8 ohms

12 ohms

3 ohms

the same at all points in the circuit

different in every component

zero everywhere

split between branches

They attract

They repel

Nothing happens

They lose their magnetism

Decreasing the current in the coil

Removing the iron core

Increasing the number of turns on the coil

Using fewer turns of wire

It can never be switched off

It has only one pole

It needs no electricity

It can be switched on and off and its strength can be controlled