Linear motion

Question 1

Scalars

Answer 1

> A quantity which has magnitude
(NO direction)
e.g. speed, energy, mass, power, length

Question 2

Vectors

Answer 2

> A quantity with both direction and magnitude
e.g. velocity, acceleration, displacement, force, weight

Question 3

Linear motion

Answer 3

The movement of the body in a straight line, where all parts move the same distance, in the same direction, over the same time.

Question 4

5 factors of linear motion

Answer 4

1) Distance
2) Displacement
3) Speed
4) Velocity
5) Acceleration/deceleration

Question 5

Distance

Answer 5

The total length covered from a start to finish position, measured in meters.

Question 6

Displacement

Answer 6

The shortest ‘straight line’ route from a start to finish position, measured in meters.

Question 7

Speed

Answer 7

The time taken to move a body (part or whole) through a movement over a predetermined distance.

speed- distance/time
(m/s)

Question 8

Velocity

Answer 8

Speed in a particular direction.

Velocity- displacement/time
(m/s)

Question 9

Acceleration

Answer 9

Rate of change of velocity

Acceleration -
(final velocity-initial velocity)/time
(m/s^2)