Forces 7Y

Question 1

What is a force?

Answer 1

A force is a push or a pull

Question 2

What is Friction?

Answer 2

The force that slows down moving objects

Question 3

How do you calculate speed?

Answer 3

You divide the Distance by the time that is taken.

Question 4

What is the formula for calculating speed?

Answer 4

S=D/T

Question 5

What is the formula for calculating time?

Answer 5

T=D/S

Question 6

What is the formula for calculating distance?

Answer 6

D=S*T

Question 7

What is Air Resistance?

Answer 7

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

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 a surface, air or water.

Question 11

Deform

Answer 11

To change shape when an excessive amount of a force is applied.

Question 12

Drag force

Answer 12

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

Question 13

Driving Force

Answer 13

The force that is pushing or pulling something

Question 14

Elastic Limit

Answer 14

The point beyond which a spring will not return to it’s original length when the force acting on it 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 between two objects.

Question 20

Hooke’s Law

Answer 20

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

Question 21

If a car travels 50m in 2 seconds, what is it’s speed?

Answer 21

It’s speed is 25 m/s

Question 22

What is the formula for density?

Answer 22

Mass/Volume

Question 23

Interaction Pair

Answer 23

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

Question 24

Kilogram

Answer 24

A unit of weight (kg).

Question 25

Lubrication

Answer 25

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

Question 26

Magnetic Force

Answer 26

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

Question 27

Mass

Answer 27

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

Question 28

Newton (N)

Answer 28

The unit of force, symbol, N.

Question 29

Newton meter

Answer 29

A piece of equipment used to measure weight in newtons.

Question 30

Non-contact force

Answer 30

A magnetic, electrostatic, or gravitational, force

Question 31

Pull

Answer 31

A type of force.

Question 32

Push

Answer 32

A type of force.

Question 33

Reaction force

Answer 33

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

Question 34

Upthrust

Answer 34

The support force provided when an object is on a fluid surface, like water.

Question 35

Resistive forces

Answer 35

Any forces that act to slow down moving object.

Question 36

Streamlined

Answer 36

Shaped in a way to reduce resistance rom air or water, thus enabling smoother, faster movement.

Question 37

Tension

Answer 37

A stretching force.

Question 38

Unbalanced

Answer 38

Opposing forces on an object that are unequal.

Question 39

Water resistance

Answer 39

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

Question 40

Weight

Answer 40

The force of the Earth on an object due to it’s mass