Motion

Question 1

Motion in a Straight Line

Answer 1

average speed = distance travelled / time taken

Question 2

Typical Speeds

Answer 2

walking speed - 1m/s

running - 3m/s

cycling - 6m/s

car - 13 to 30m/s

train - 50m/s

aeroplane - 250m/s

Question 3

Distance-Time Graph

Answer 3

Straight Line shows that the object is stationary (not moving.)

Sloping Line shows that the object is moving.

The greater the gradient(the steepness of the slope), the faster the object is moving

Question 4

Acceleration

Answer 4

The rate of change of velocity.

acceleration = change in velocity/ time taken

Question 5

Velocity-Time Graph

Answer 5

A horizontal line shows that the object is moving at a constant velocity.

A sloped line shows that the object is accelerating.

Question 6

Finding the Distance travelled in a Velocity-time Graph

Answer 6

Can be calculated by the area under a velocity-time graph.

Question 7

Velocity, Acceleration and Distance

Answer 7

(final velocity)(squared) - (initial velocity)(squared) = 2 x acceleration x distance