Motion

Question 1

On a distance-time graph, what do a horizontal line and a steep sloping line show?

Answer 1

H: Stationary - not moving
SS: Constant fast speed

Question 2

What is velocity?

Answer 2

Speed in a given direction, even if the object stays the same speed, if it moves direction, it’s velocity has changed.

Question 3

If an object’s velocity has changed we can say it has…

Answer 3

Accelerated

Question 4

A = v-u/t what does this stand for and what are the units

Answer 4

A - Acceleration (velocity) in m/s2
V - Final velocity in m/s
U - Start velocity in m/s
T - Time in seconds

Question 5

If an object is slowing down, what does that mean?

Answer 5

It is decelerating, so a negative acceleration value is given

Question 6

In a velocity - time graph what does a horizontal and steep slope show?

Answer 6

H: Constant velocity - no acceleration
SS: It is accelerating or decelerating

Question 7

How to calculate the gradient of a line on dis and velo

How to calculate the distance travelled on a velo graph

Answer 7

Grad: Change in y/change in x in either m/s or m/s2
Dist: Area under the graph