Forces and Speed

Question 1

air resistance

Answer 1

The force on an object moving through the air that causes it to slow down (also known as drag).

Question 2

balanced

Answer 2

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

Question 3

driving force

Answer 3

The force that is pushing or pulling something.

Question 4

equilibrium

Answer 4

Balanced

Question 5

extension

Answer 5

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

Question 6

friction

Answer 6

The force that resists movement because of contact between surfaces.

Question 7

gravity

Answer 7

A non-contact force that acts between two objects

Question 8

lubrication

Answer 8

A substance that reduces friction between surfaces when they rub together.

Question 9

magnetic force/ magnetism

Answer 9

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

Question 10

kilograms

Answer 10

A unit of mass/ kg

Question 11

newtons

Answer 11

A unit of force/ N

Question 12

mass

Answer 12

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

Question 13

newton meter

Answer 13

A piece of equipment used to measure weight in newtons.

Question 14

non-contact force

Answer 14

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

Question 15

reaction

Answer 15

The support force provided by a solid surface like a floor.

Question 16

streamlined

Answer 16

Shaped to reduce resistance to motion from air or water.

Question 17

tension

Answer 17

A stretching force.

Question 18

unbalanced

Answer 18

Opposing forces on an object that are unequal.

Question 19

water resistance

Answer 19

The force on an object moving through water that causes it to slow down (also known as drag).

Question 20

weight

Answer 20

The force of the Earth on an object due to its mass.

Question 21

Force

Answer 21

When you apply it to an object it changes its direction or speed

Question 22

Speed =

Answer 22

distance/time

Question 23

Distance =

Answer 23

speed x time

Question 24

Time =

Answer 24

distance/speed

Question 25

Distance - time graph

Answer 25

The motion of an object can be described by this

Question 26

Push/Pull

Answer 26

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

Question 27

Line of best fit/ LOBF

Answer 27

A line that goes close to or through most of the points on a graph, missing out anomaly.

Question 28

Anomaly

Answer 28

A result that doesn’t fit the pattern or the trend.

Question 29

Friction

Answer 29

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

Question 30

Lift

Answer 30

A force pushing upwards on an object flying in the air.

Question 31

Buoyancy

Answer 31

The ability or tenancy of something to float in water or fluid.

Question 32

Thrust

Answer 32

A push caused by an engine.

Question 33

Upthrust

Answer 33

A force pushing upwards on an object in a liquid.

Question 34

Mass=Newtons or …g=…N

Answer 34

100g of mass weighs 1N

Question 35

Mass=Newtons or …kg=…N

Answer 35

kg of mass weighs 10N

Question 36

Density

Answer 36

mass of an object/volume of an object

Question 37

Earths gravitational field strength is…

Answer 37

10N/kg

Question 38

Earths gravitational field strength is 10N per kg

Equation for this statement is…

Answer 38

Weight     = mass         x gravitational field strength
Newtons  = kilograms x Newtons per kilogram

Question 39

Weight =

Answer 39

mass x gravitational field strength

Question 40

Gravitational field strength =

Answer 40

weight/mass

Question 41

Mass =

Answer 41

weight/gravitational field strength

Question 42

What are the characteristics of a streamlined shape?

Answer 42

1. rounded front
2. A slowly tapering tail
3. Smooth shape with no projections