Glossary

Question 1

Balanced

Answer 1

Forces acting on an object that are the same size but act in opposite directions

Question 2

Compress

Answer 2

To squash into a smaller space

Question 3

Deform

Answer 3

To change shape

Question 4

Elastic Limit

Answer 4

The point beyond which a spring will not return to its original length when the force is removed

Question 5

Equilibrium

Answer 5

Balanced

Question 6

Extension

Answer 6

The amount by which an object gets longer when a force is applied

Question 7

Field

Answer 7

A region where something feels a force

Question 8

Hooke’s Law

Answer 8

The law that states that if you double the force on an object the extension will double

Question 9

Interaction Pair

Answer 9

When two objects interact there is a force on each one that is the same size but in opposing directions

Question 10

Kilogram (kg)

Answer 10

A unit of mass, symbol kg.

Question 11

Lubrication

Answer 11

A substance that reduces friction between surfaces when they rub together

Question 12

Mass

Answer 12

The amount of matter a thing is made up of

Question 13

Newton (N)

Answer 13

The unit of force, symbol N.

Question 14

Newton Meter

Answer 14

A piece of equipment used to measure weight in newtons

Question 15

Streamlined

Answer 15

Shaped to reduce resistance to motion from air or water

Question 16

Unbalanced

Answer 16

Opposing forces on an object that are unequal