AQA P1

A lightbulb is 80% efficient. What % of energy is wasted?

Which of these has the smallest wavelength?

What is the voltage increased before it is sent out through the National Grid?

The amount of energy an electric appliance transfers depends on what two things:

1kWh is equal to...

What is the unit of frequency?

How is heat energy transferred through a solid?

Energy = Power x Time. What units do electric companies use?

Which of these is NOT used to heat water in a power station?

If 1kWh costs 10p, how much would 30kWh cost?

What type of diagram is this?

What is a measure of how effective a material is as an insulator?

What type of waves are sound waves?

The Doppler effect can be seen in the light from distant galaxies. This is called...

Which of these emit infrared radiation?

The angle of incidence is always equal to...

The Big Bang theory is currently the only explanation for...

Which object emits the most infrared radiation on a cold day?

Which emits the most infrared radiation?

The image produced in a plane mirror is...

CMBR stands for...

A sound wave with a high frequency is...

A sound wave with a large amplitude is...

What type of energy source is obtained from hot water and steam below the Earth's surface?

What is happening to the waves in this image?

What type of waves are electromagnetic waves?

Which of these EM waves is NOT used in communication?

Galaxies furthest away have a greater red-shift. This tells us they are moving away from us...

What energy type is wasted in a Hairdryer?

Diffraction only happens when the gap is...

Which of these has the lowest frequency?

Which electromagnetic waves is in the spectrum between infrared radiation and radio waves?

When the sound waves are squashed, it sounds...

Red shift provides evidence for which theory?

What happens to the wasted energy from a TV?

What are the units for specific heat capacity

This diagram shows...

Which of these is NOT part of the National Grid

What do waves transfer?