Physics Test

Question 1

We often use the term

Answer 1

Average speed

Question 2

The formula to calculate average speed is:

Answer 2

Distance traveled divided by time taken

Question 3

The units of speed are

Answer 3

km/h & m/s

Question 4

To convert between km/h and m/s you

Answer 4

To convert from m/s to km/h you x 3.6 and to convert km/h to m/s you divide by 3.6

Question 5

The formula for distance is

Answer 5

Speed x time

Question 6

The formula for time is:

Answer 6

Distance divided by speed

Question 7

Velocity must

Answer 7

Take into account direction

Question 8

Velocity is

Answer 8

Speed with direction

Question 9

A distance time graph

Answer 9

Shows how far an object travels as time progresses

Question 10

A horizontal line

Answer 10

Indicates that the motion has stopped

Question 11

A line with a steep slope indicates

Answer 11

That the object covers a greater distance and is moving faster than an object with a gentle slope

Question 12

The slope is also known as:

Answer 12

The gradient

Question 13

A speed time graph shows

Answer 13

How an objects speed changes over time

Question 14

On a speed - time graph if the line is horizontal

Answer 14

It indicates constant speed

Question 15

On a speed tine graph the line rising up

Answer 15

Indicates increasing speed ( acceleration )

Question 16

On a speed time graph the line falling down

Answer 16

Indicates decreasing speed (negative acceleration/ deceleration)

Question 17

Speed is the measure…

Answer 17

Of how quickly something moves

Question 18

The rate at which speed changes is called

Answer 18

Acceleration

Question 19

A positive acceleration indicates that

Answer 19

Something is speeding up

Question 20

A negative acceleration indicates that

Answer 20

Something is slowing down

Question 21

Acceleration has units of

Answer 21

m/s/s or km/hr/s

Question 22

The formula for acceleration is

Answer 22

Is vf - vi divided by t

Question 23

The formula for vf (final speed) is

Answer 23

a times t plus vi I

Question 24

The formula for vi ( initial speed) is

Answer 24

a times t takeaway vf

Question 25

Vi is

Answer 25

Initial speed

Question 26

Vf is

Answer 26

Final speed

Question 27

A falling object

Answer 27

Accelerates towards earth because of the force of gravity

Question 28

As objects fall to the earth they

Answer 28

Speed up

Question 29

The speed of a falling object

Answer 29

Increases by 9.8m/s every second

Question 30

Newtons first law of motion states:

Answer 30

An object at rest will remain at rest unless acted upon by a force, and that an object that is moving will continue to move at the same speed unless stated upon by an unbalanced force

Question 31

Iteria is

Answer 31

An objects tendency to maintain its state of motion i.e: if it is at rest it will stay at rest

Question 32

Newtons second law of motion states:

Answer 32

An object will accelerate in the direction of an unbalanced force acting upon it. The size of the acceleration depends on the mass of the object and the size of the force acting upon it

Question 33

The formula for force is:

Answer 33

M x a ( mass x acceleration)

Question 34

The formula for mass is:

Answer 34

Force divided by mass

Question 35

The formula for acceleration is:

Answer 35

F divided by m (force divided by mass)

Question 36

Newtons third law states

Answer 36

For every action there is an equal and opposite reaction force