P1

Question 1

If an object is stationary on a distance- time graph?

Answer 1

The line is horizontal.

Question 2

If an object is moving at a constant speed on a distance- time graph?

Answer 2

Is a straight line that slopes upwards.

Question 3

Velocity of an object?

Answer 3

Its speed in a given direction. (If object changes direction it changes velocity, even if speed stays same). If velocity of object changes= accelerates.

Question 4

Gradient on a velocity line graph represent?

Answer 4

Acceleration. Steeper gradient, greater acceleration.

Question 5

If the line on velocity time graph horizontal?

Answer 5

Acceleration=zero. Object travelling at a steady speed.

Question 6

If the gradient of the line is negative? (Velocity graph).

Answer 6

Object=decelerating.

Question 7

What does the gradient on a distance- time graph represent?

Answer 7

An object’s speed (travelled each second). Steeper the gradient, greater the speed.