Motion

Question 1

What is the equation for speed?

Answer 1

Speed = Distance / Time

Question 2

What is the typical speed for cycling?

Answer 2

6m/s

Question 3

What is the typical speed for walking?

Answer 3

1.5m/s

Question 4

What is the typical speed for running?

Answer 4

3m/s

Question 5

What is the typical speed for a car?

Answer 5

15m/s

Question 6

What is the typical speed for train?

Answer 6

90m/s

Question 7

What is the typical speed for a plane?

Answer 7

250m/s

Question 8

What is the typical speed for sound in the air?

Answer 8

330m/s

Question 9

What is speed?

Answer 9

The rate of change of distance

Question 10

What is velocity?

Answer 10

The rate of change of displacement

Question 11

What is the equation is velocity?

Answer 11

Velocity = Displacement / Time

Question 12

What is acceleration?

Answer 12

The rate of change of velocity

Question 13

What are the units for acceleration?

Answer 13

Metres per second squared

Question 14

What is the equation for acceleration?

Answer 14

Acceleration = change in velocity / time

Question 15

What is the typical acceleration for a motorbike?

Answer 15

6 metres per second squared

Question 16

What is the typical acceleration for a car?

Answer 16

3 metres per second squared

Question 17

What is the typical acceleration for an object falling on Earth?

Answer 17

9.8 metres per second squared

Question 18

What is the typical acceleration for a space shuttle launch?

Answer 18

29 metres per second squared

Question 19

On a distance time graph what does the gradient show?

Answer 19

Speed

Question 20

On a velocity time graph what does the gradient show?

Answer 20

Acceleration

Question 21

On a velocity time graph what does a horizontal line represent?

Answer 21

An object moving at a constant speed

Question 22

What is the equation for final velocity?

Answer 22

Final velocity squared = Initial velocity squared + 2 (acceleration x displacement)

Question 23

What is Newton’s second law of motion?

Answer 23

Force = mass x acceleration

Question 24

What is an object moving in circular motion doing?

Answer 24

Constantly accelerating

Question 25

What is Newton’s first law of motion?

Answer 25

When a resultant force of an object is zero the object is stationary or moving at a constant speed in a straight line

Question 26

What is a resultant force needed to do?

Answer 26

Start a stationary object to move, slow down a moving object, speed up a moving object, stop a moving object, change the direction of a moving object

Question 27

What is inertia?

Answer 27

Objects with mass that have a tendency to resist motion

Question 28

What is the equation for inertial mass?

Answer 28

Inertial mass = force / acceleration

Question 29

What is terminal velocity?

Answer 29

Where a falling object accelerates due to gravitational field strength as speed increases so does air resistance until eventually the forces balance out

Question 30

What factors affect how long it takes to stop a vehicle?

Answer 30

Thinking time and braking distance

Question 31

What factors affect thinking time?

Answer 31

Tiredness, alcohol, drugs, distractions, speed of vehicle

Question 32

What factors affect braking distance?

Answer 32

Weather conditions, road conditions, conditions of vehicle, speed of vehicle