sciencne

The source of energy needed to move the windmills is ____

• The sun

• Wind

• Air

• Batteries

When we want to make a windmill the first step to do is ____

• Planning stage

• Building stage

• Inproving stage

• Completion stage

Which of the following does not use kinetic energy?

• Windmill

• Watermill

• Pencil case

• Sailboat

The sails of a sailboat model can be made of ____

• Wood

• Plastic

• Paper

• Glass

Kinetic energy is _____

• Produced when an object vibrates

• The energy due to the movement of an object

• The energy stored in substances such as food and fuels

• Produced by luminous objects

What other materials can we use to make a boat?

I. Clay

II. Plastic container

III. Cotton wool

• I only

• II and III

• I, II, III

• I and II

Fisherman need kinetic energy for ____

• Moving the boat

• Drying rice

• Catch fish

• Drying salted fish

The picture above can produce ____

• Light energy

• Heat energy

• Kinetic energy

• Chemical energy

The kite can move because it gets energy from ____

• Wind

• Food

• Sun

• Electricity

Sailboats use _____ to push them through the water

• Fuels

• Water

• The sun

• Wind