Grade 8 Energy & Work Done

Ability to do work is called ....

• Energy

• Force

• Joule

• Newton

Which one is NOT the unit of energy?

• J

• kJ

• cal

• N

Which one is stored energy?

• Kinetic energy

• Electrical energy

• Light energy

• Thermal energy

Which option ONLY contain stored energy?

• strain energy, GPE, electrical energy

• EPE, electrical energy, chemical energy

• electrical energy, chemical energy, internal energy

• internal energy, GPE, chemical energy

This object has ....

• Kinetic energy

• Chemical potential energy

• Elastic potential energy

• Strain energy

Why dropping HP from higher position make the phone more broken?

• It has more GPE

• It has less GPE

• It has less kinetic energy

• It has more EPE

When this object is pull to make it longer, it has ....

• Less strain energy

• More strain energy

• Less elastic potential energy

• more chemical energy

Uranium stores ....

• Nuclear energy

• Electrical energy

• Strain energy

• Light energy

Which option ONLY contain transferred energy?

• strain energy, GPE, electrical energy

• light energy, electrical energy, thermal energy

• electrical energy, chemical energy, internal energy

• internal energy, GPE, chemical energy

Elastic potential energy is also called as ....

• Strain energy

• Thermal energy

• Kinetic energy

• Nuclear energy