Elastic Force Grade 4

Something that is elastic springs back after being stretched.

• True

• False

Glass is an example of an elastic material.

• True

• False

Items that are elastic include

• metal wires

• concrete blocks

• spring toys

• all of the above

A rubber band keeps a newspaper tightly rolled because it

• can be tied tightly

• exerts elastic force

• is unbreakable

• none of the above

When you compress a spring, it

• resists the change in shape

• exerts a force in the same direction.

• permanently changes to a new shape.

• none of the above

Springs are used in

• bed

• table

• door

• all of the above

A rubber band can stretch without breaking because it is

• unbreakable

• strong

• elastic

• huge

The example of objects that can produce elastic force are

• trampoline

• bungee jumping

• spring

• all of the above

Look at this picture. Forces that can be found in this activity are

• Elastic and gravity

• Gravity and magnetic

• Electrical and elastic

• Elastic and magnetic

What is the function of elastic force in our daily life?

• It can be used inside the bed to make it soft.

• It can be used in the scale.

• It can be used in the car.

• All of the above.