concept 3 revision grade 4

When you use the hand bell the kinetic energy changes into ………………………..

• Thermal   

• Light

• Sound

• Electrical

Both Mobil and radio produce .........................energy that express their main function.

…………………….is considered as a main resource of the energy on the earth.

• Moon

• Mars

• Sun

• Fuel

When you turn on a light bulb, the electrical energy travels through..................until reaching the bulb.

• Glass

• Wires

• Wood

• Plastic

The energy produced from a battery....................

Energy is neither be created nor destroyed but it changes from one form into another form that's the law of .........................

If the ……………..energy doesn’t go through the electric washing machine wire

, it will not turn on.

• Sound

• Electrical

• Kinetic

• Thermal

The moving bike changes Kinetic energy into chemical energy due to friction force ................

• X

The output energy when playing drums is the....................energy.

• Chemical

• Light

• Sound

• Kinetic

The produced sound energy helps the hair dryer to do its function.................

• X