Physics CT1

Question 1

What does scalar mean?

Answer 1

Quantities that have magnitude only

Question 2

What does vector mean?

Answer 2

Quantities that have magnitude and a direction

Question 3

What does speed mean?

Answer 3

How fast an object is travelling

Question 4

What does velocity mean?

Answer 4

Speed with a direction

Question 5

What does acceleration?

Answer 5

The rate of change of velocity

Question 6

What does displacement mean?

Answer 6

Shortest point between two points

Question 7

What does mass mean?

Answer 7

How much of something there is

Question 8

What does weight mean?

Answer 8

The force of gravity with mass

Question 9

What is mass measured in?

Answer 9

Kg

Question 10

What is weight measured in?

Answer 10

Newtons

Question 11

How to calculate weight?

Answer 11

Mass times Gravity

Question 12

What does instantaneous speed mean?

Answer 12

the speed at a particular point in a journey

Question 13

What does average speed mean?

Answer 13

total distance divided by the total time taken

Question 14

How to calculate speed?

Answer 14

distance divided by time

Question 15

What does a horizontal line mean on a distance time graph?

Answer 15

stationary/ not moving

Question 16

What does a consistent gradient mean on a distance time graph?

Answer 16

consistent speed

Question 17

What does a steeper line mean on a distance time graph?

Answer 17

The faster it is moving

Question 18

What does a downward line mean on a distance time graph?

Answer 18

Going/moving backwards

Question 19

What does acceleration mean?

Answer 19

Is a change in velocity per second

DIRECTION MATTERS

Question 20

How do calculate acceleration?

Answer 20

final velocity minus initial velocity divided by time taken

Question 21

Why does acceleration happen?

Answer 21

Due to gravity

Question 22

What is the gravitational field strength?

Answer 22

9.8 or 10

Question 23

What happens when an object has a negative acceleration number?

Answer 23

It is losing speed

Question 24

What is the long formula for acceleration when the distance is unknown?

Answer 24

v2-u2=2xaxX

Question 25

Define momentum

Answer 25

A combination of mass and gravity

Question 26

Define acceleration

Answer 26

Change in speed or velocity of an object over a certain time

Question 27

Define force

Answer 27

an influence that can cause an object to change its velocity

Question 28

Define energy

Answer 28

The capacity for doing work

Question 29

Define distance

Answer 29

The total length of the path covered by an object it is scalar

Question 30

Define displaysment

Answer 30

The shortest distance between the initial and final position of an object it is vector

Question 31

Difference between velocity and speed

Answer 31

Velocity is a vector that measures both magnitude and direction while speed is scalar that measures only magnitude

Question 32

Typical speed for walking

Answer 32

1.5 m/s

Question 33

Typical speed for running

Answer 33

12 km/h

Question 34

Typical speed for cycling

Answer 34

6 m/s

Question 35

Typical speed of car

Answer 35

30 mph

Question 36

How to work out the gradient of a distance time graph

Answer 36

vertical difference between two points on a graph divided by the horizontal difference between the same two points