Force and speed

Question 1

Push/pull

Answer 1

A force exerted to move an object away or towards another object

Question 2

Friction

Answer 2

The force between two surfaces sliding over one another, that causes them to heat up and wear

Question 3

Weight

Answer 3

The force that pulls objects towards the centre of the Earth

Question 4

Air resistance/drag

Answer 4

A force acting against any object that is moving through the Earth’s atmosphere

Question 5

Lift

Answer 5

A force pushing upwards on an object flying through the air

Question 6

Upthrust

Answer 6

A force pushing on an object in a liquid

Question 7

Thrust

Answer 7

A push caused by an engine

Question 8

Balanced

Answer 8

Forces acting on an object that are the same size but act in opposite directions

Question 9

Compress

Answer 9

To squash into a smaller space

Question 10

Contact force

Answer 10

A force that acts when an object is in contact with surface, air or water

Question 11

Deform

Answer 11

To change shape

Question 12

Drag force

Answer 12

The force acting on an object moving through the air or through water that causes it to slow down

Question 13

Driving force

Answer 13

The force that is pushing or pulling on an object

Question 14

Elastic limit

Answer 14

The point beyond which a spring will not return to it’s original length when the force is removed

Question 15

Electrostatic force

Answer 15

The force acting between two charged objects

Question 16

Equilibrium

Answer 16

Balanced

Question 17

Extension

Answer 17

The amount by which an object gets longer when a force is applied

Question 18

Field

Answer 18

A region where something feels a force

Question 19

Gravity

Answer 19

A non-contact force that acts between two masses

Question 20

Hooke’s law

Answer 20

The law saying that if you double the force on an object the extension will double

Question 21

Interaction pair

Answer 21

When two objects interact there is a force on each one that is the same size but in opposing directions

Question 22

Kilogram (kg)

Answer 22

A unit of mass, symbol kg

Question 23

Lubrication

Answer 23

A substance that reduces friction between surfaces when they rub together

Question 24

Magnetic force

Answer 24

The force between two magnets, or a magnet and a magnetic material

Question 25

Mass

Answer 25

The amount of matter (stuff) a thing is made up of

Question 26

Newton (N)

Answer 26

The unit of force, symbol N

Question 27

Newton metre

Answer 27

A piece of equipment used to measure weight in newtons

Question 28

Non-contact force

Answer 28

A magnetic, electrostatic or gravitational force that acts between objects not in contact

Question 29

Reaction

Answer 29

The support force provided by a solid surface like a floor

Question 30

Resistive forces

Answer 30

Any forces that act to slow down a moving object

Question 31

Streamlined

Answer 31

Shaped to reduce resistance to motion from air or water

Question 32

Tension

Answer 32

A stretching force

Question 33

Unbalanced

Answer 33

Opposing forces on an object that are unequal

Question 34

What does 100g of mass weigh? (N)

Answer 34

1N

Question 35

Earth's Gravitational field strength is?

Answer 35

10N/kg

Question 36

Equation for mass?

Answer 36

m=w/g

Question 37

Equation for gravity?

Answer 37

g=w/m

Question 38

Equation for weight?

Answer 38

w=mg

Question 39

Equation for speed?

Answer 39

s=d/t

Question 40

Equation for distance?

Answer 40

d=st

Question 41

Equation for time?

Answer 41

t=d/s

Question 42

How do you write miles per hour?

Answer 42

m/h

Question 43

In a distance-time graph, what does a diagonal line mean?

Answer 43

A constant speed

Question 44

In a distance-time graph, what does a horizontal line mean?

Answer 44

Stationary

Question 45

In a distance-time graph, what does a downwards diagonal line mean?

Answer 45

Constant speed in the opposite direction

Question 46

In a distance-time graph, what does a steeper diagonal line mean?

Answer 46

Faster constant speed

Question 47

What will a newton metre read when dangled in water?

Answer 47

It will not have to pull up as much because of upthrust, therefore reading lower than if it were in the air.

Question 48

The denser the liquid the more...?

Answer 48

The denser the liquid the more upthrust you get

Question 49

Equation for density?

Answer 49

Density=Mass/Volume

Question 50

What is the unit for density?

Answer 50

g/cm^3

Question 51

Following Hooke's law, what will the line of a graph be?

Answer 51

It will be a straight line from its origin