Forces - Singular Words

Question 1

Force

Answer 1

A Push or A Pull

Question 2

Contact Force

Answer 2

A force that has to involve contact to occur.

Question 3

Non-Contact Force

Answer 3

A force that does not need contact to occur.

Question 4

Force Diagram

Answer 4

A diagram using arrows to show forces.

Question 5

Interaction Pairs

Answer 5

Interaction pairs are the pairs of forces that act upon you. Eg: Reaction Force and Gravity.

Question 6

Newtons

Answer 6

The unit used to measure forces.

Question 7

Newton Metre

Answer 7

The instrument used to measure newtons.

Question 8

Deform

Answer 8

An affect all contact forces have.

Question 9

Compress

Answer 9

Making an object smaller.

Question 10

Reaction/Normal Force

Answer 10

The force that works against gravity to keep you from falling to the centre of the Earth.

Question 11

Extension

Answer 11

How much an object grows in length when you add newtons.

Question 12

Elastic Limit

Answer 12

A limit that acts on springs and other similar objects. When it is passed, the spring won’t return to it’s normal shape.

Question 13

Hooke’s Law

Answer 13

Hooke’s Law states that when you double the amount of force on an object, the extension will double.

Question 14

Balanced Force

Answer 14

When two forces are balanced, they are in equilibrium, this means nothing will move.

Question 15

Weight

Answer 15

Another name for gravity

Question 16

Friction

Answer 16

The force between any two moving objects that are touching. Eg: The cars wheels and the road.

Question 17

Air Resistance/Drag

Answer 17

A contact force that acts of objects moving through the air.

Question 18

Gravity

Answer 18

The force that keeps you on the ground.

Question 19

Water Resistance

Answer 19

A contact force that acts on any object moving through water.

Question 20

Streamlined

Answer 20

Streamlining is a way to reduce air and water resistance.

Question 21

3 Affects of Forces

Answer 21

Forces Can change

Question 22

3 Affects of Forces

Answer 22

A force can change Speed
Shape
Position

Question 23

Tension

Answer 23

Tension is what happens when a bungee cord reaches its limit and brings you back up.

Question 24

Thrust

Answer 24

Thrust is how cars move along the road.

Question 25

Upthrust

Answer 25

Upthrust is how planes get in the air.

Question 26

Resultant Force

Answer 26

Resultant Force is what happens when two forces are unbalanced. Eg: 50N to the left, 30N to the right. Resultant force = 20N to the left.