ENERGY by Teacher Hamza

What is Energy?

• Amount of matter in a substance

• Ability to do work

• Amount of density

• Amount of mass

What is change of change of energy in a catapult?

• chemical to elastic to kinetic

• kinetic to elastic to chemical

• heat to kinetic to elastic

• elastic to heat to kinetic

Energy in car batteries is

• Tidal

• mechanical

• chemical

• electrical

2000 Joules equal to

• 2000KJ

• 2 KJ

• 200KJ

• 20 KJ

Energy to height is called?

• Potential energy

• Mechanical energy

• Tidal energy

• Solar energy

Energy provided by the sun is called?

• Potential energy

• Mechanical energy

• Solar energy

• Tidal energy

What is Kinetic energy?

• Energy due to movement

• Energy due water waves

• Electrical energy

• Energy of height

What is the SI unit of Energy?

• Newton

• Kg

• seconds

• Joules

When you pull a spring, what energy changes?

• Elastic to chemical

• heat to elastic

• chemical to elastic

• mechanical to kinetic