Forces And Motion

Question 1

Speed

Answer 1

A measure of how far you travel in a set amount of time ( how fast you’re going )

Question 2

Distance time graph

Answer 2

Shows the distance travelled by an object over time

Question 3

Relative motion

Answer 3

Two objects passing each other

Question 4

Forces

Answer 4

Pushes and pulls that occur when 2 objects interact

Question 5

Friction

Answer 5

A force that always acts in the opposite direction to movement

Question 6

Streamlined

Answer 6

They can slip through the air or water without too much resistance

Question 7

Force diagrams

Answer 7

Shows the forces acting on an object and whether they’re balanced or unbalanced

Question 8

Pivot

Answer 8

The point around which rotation happens

Question 9

Moment

Answer 9

Turning effect of a force

Question 10

Equilibrium

Answer 10

All forces are balanced

Question 11

Pressure

Answer 11

How much force is put on a certain area

Question 12

Atmospheric pressure

Question 13

Upthrust

Answer 13

An overall upwards force

Question 14

Air and water resistance

Answer 14

Pushes against objects that move through air or water

Question 15

Equation for speed

Answer 15

Speed = Distance over time

Question 16

Equation for Moment

Answer 16

Moment = Force * Perpendicular distance

Question 17

Equation for Pressure

Answer 17

Pressure = Force over area

Question 18

Contact force

Answer 18

A force that acts by direct contact

Question 19

Non contact force

Answer 19

A force that acts without direct contact

Question 20

Acceleration

Answer 20

How quickly speed increases or decreases

Question 21

Resultant force

Answer 21

A single force which can replace all the forces acting on an object and have the same effect

Question 22

Fluid

Answer 22

A substance with no fixed shape ( gas or liquid )

Question 23

Work

Answer 23

Transfer of energy when a force moves an object in joules

Question 24

Lever

Answer 24

Type a machine which is a rigid bar that pivots about a point