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Question 1

What is the difference between a Vector and Scalar quantity

Answer 1

Vector has a magnitude with direction but scalar only has a magnitude

Question 2

Define a contact force

Answer 2

When two objects have to be touching for a force to act

Question 3

Define non contact force

Answer 3

If the objects do not need to be touching for a force to act

Question 4

Define weight

Answer 4

A force acting on a object due to gravity

Question 5

What do you use to measure weight of an object

Answer 5

A Newtonmeter

Question 6

What is the formula that links Gravitational field strength, Mass and Weight

Answer 6

Weight = Mass X GFS

Question 7

Define a Resultant force

Answer 7

It is the overall force acting on an object

Question 8

What are the main examples of a force

Answer 8

Drag, air resistance, weight, driving force, friction

Question 9

What formula links Distance, Force and Work done

Answer 9

Work done= Force x Distance

Question 10

How can you tell if a set of forces are balanced using a scale diagram

Answer 10

If all the force arrows are placed tip-to-tail, the the forces are equal.

Question 11

What are three examples of forces in a spring

Answer 11

Compression
Bending
Stretching

Question 12

Define Elastic Deformation

Answer 12

An object can go back to its original shape and length after a force has been removed

Question 13

Define Inelastic Deformation

Answer 13

An object cannot go back to its original shape and length after a force has been removed

Question 14

What is a limit of proportionality in a spring

Answer 14

The point where there is a limit to the amount of force you can apply to an object for the extension to keep on increasing with the force

Question 15

What are 6examples of scalar quantities

Answer 15

Temperature
Mass
Distance
Speed
Energy
Time

Question 16

What are 5 examples of Vector quantities

Answer 16

Force
Displacement
Velocity
Acceleration
Momentum

Question 17

What is the speed of a person walking, running and cycling

Answer 17

Walking- 1.5 m/s
Running- 3 m/s
Cycling - 6 m/s

Question 18

What is the speed of a car, train and plane

Answer 18

Car - 25 m/s
Train - 55 m/s
Plane - 250 m/s

Question 19

What 3 things can affect the speed someone walks, runs or cycles

Answer 19

1. fitness
2. age
3. terrain
4. distance travelled

Question 20

What 2 things can affect the wind speed

Answer 20

1. temperature
2. atmospheric pressure

Question 21

Define acceleration

Answer 21

The change in velocity in a certain amount of time when something speeds up

Question 22

Define desceleration

Answer 22

The change in negative velocity in a certain amount of time when something slows down

Question 23

What is the formula for acceleration

Answer 23

acceleration = change in velocity/time

Question 24

Define uniform acceleration

Answer 24

Constant acceleration

Question 25

What is the equation for uniform acceleration

Answer 25

final velocity squared - initial velocity squared = 2 x acceleration x distance