Dynamics (Kinematics)

Question 1

Speed

Answer 1

How fast an object is moving (regardless of direction)

Question 2

Velocity

Answer 2

The rate of change in an objects displacement (vector)

Question 3

Displacement

Answer 3

Distance moved from starting point in a given direction (vector)

Question 4

Accelleration

Answer 4

The rate of change of an objects velocity

Question 5

Gradient of a displacement-time graph

Answer 5

Velocity

Question 6

Acceleration on a distance-time graph

Answer 6

The rate of change of the gradient

Question 7

Non-uniform acceleration

Answer 7

Where direction of motion changes, or speed changes at a varying rate

Question 8

Distance on a velocity-time graph

Answer 8

Area under the graph

Question 9

Negative displacement on a velocity-time graph

Answer 9

Area under the negative part of the graph

Question 10

Total change in velocity on an acceleration-time graph

Answer 10

Area under the graph

Question 11

Horizontal line on an acceleration-time graph

Answer 11

• If a=0, then there is no acceleration (moving at a constant speed)
• If a≠0 then there in uniform acceleration

Question 12

Deceleration on an acceleration-time graph

Answer 12

Line below the x-axis

Question 13

Where can suvat equations be used?

Answer 13

In situations where acceleration in constant

Question 14

What links the vertical and horizontal components in projectile motion?

Answer 14

Time

Question 15

Terminal velocity

Answer 15

A maximum velocity reached where the resistive forces equal the driving forces

Question 16

Acceleration of an object in freefall

Answer 16

9.81m/s