IGCSE PHYSICS ENERGY

What is the efficiency of a solar cell if 1000 J of solar energy hits the cell and 200 J are converted into electrical energy?

• 10%

• 20%

• 30%

• 40%

Tags

NGSS.HS-PS3-3

What is electrical energy converted into when a drill is used?

• Kinetic energy

• Sound

• Heat

• All of the above

Tags

NGSS.HS-PS3-3

What is the correct equation for gravitational potential energy

• m x g x h

• m x g / h

• m x h / g

Tags

NGSS.MS-PS3-2

What is the correct equation for kinetic energy

• 1/2 x m x v²

• m x v²

• 1 / 2 x v x m²

Tags

NGSS.HS-PS3-2

What is energy?

• moving energy

• stored energy

• renewable energy

• The ability to do work.

What is potential energy?

• moving energy

• stored energy

• renewable energy

• non renewable energy

Tags

NGSS.HS-PS3-2

What is kinetic energy?

• moving energy

• potential energy

• stored energy

• renewable energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

• A

• B

• C

• D

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

• A

• B

• C

• D

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5