Linear Motion

Question 1

Linear motion

Answer 1

Movement of a body or part of a body in a straight or curved line where all parts of the body move in the same distance in the same direction at the same time

Question 2

Direct force

Answer 2

A force applied through the centre of mass resulting in linear motion

Question 3

Centre of mass

Answer 3

The point at which a body is balanced in all direction. The point from which weight appears to act

Question 4

Distance

Answer 4

The total length covered from start to finish positions (meter)

Question 5

Displacement

Answer 5

The shorted straight line route from start to finish positions (meter)

Question 6

Speed

Answer 6

The rate of change in distance (m/s) calculated using:

Distance / time taken =speed

Question 7

Velocity

Answer 7

The rate of change in displacement (m/s) calculated using:

Displacement / time taken = velocity

Question 8

Acceleration

Answer 8

The rate of change in velocity (m/s/s) calculated using:

(Final velocity - initial velocity) / time taken

Question 9

Deceleration

Answer 9

The rate of change (decrease or negative) in velocity (m/s/s)

Question 10

Distance time graph

Answer 10

A visual representation of the distance travelled against the time taken

Question 11

Gradient

Answer 11

The slope of a graph at a particular moment in time

Gradient = change in Y axis / change in X axis

Question 12

Speed time graph

Answer 12

A visual representation of the speed of motion plotted against the time taken

Question 13

Velocity time graph

Answer 13

A visual representation of the velocity of motion plotted against the time taken