IGCSE Physics - Energy Revision

Which arrow is bigger in a Sankey diagram for a filament lamp?

What energy transfer happens in many musical instruments?

What is the main type of energy transfer in a catapult?

What type of diagram is used to show energy efficiency?

How do we calculate percentage efficiency?

What is the main useful energy transfer that happens in cars?

Which of these can happen to energy?

What are the units for energy?

Which type of appliance would convert electrical energy into sound energy?

What type of energy is also called movement?