Flexibility

Which is the best statement for elastic materials.

• We can stretch and bend them as they are flexible.

• We can stretch and bend them as they are hard.

• We can stretch them but could not bend them.

• We can bend them but could not stretch.

If some thing can't bend at all, we can say it as flexible.

• True

• False

What important properties does an inflatable life jacket need to have?

• It should be flexible and absorbent.

• It should be rigid and waterproof.

• It should be waterproof and flexible.

What happens to balloons when you let air out?

• It will become very big.

• It will go back to its original shape.

• It will not change

Inflatable life jackets are made of

• Nylon, as it is flexible and absorbent.

• Cotton, as it is flexible and water proof.

• Nylon, as it is flexible and waterproof.