Science Forces and Speed

Question 1

What is a force?

Answer 1

A push, pull or a twist

Question 2

Air resistance/drag

Answer 2

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

Question 3

balanced

Answer 3

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

Question 4

compress

Answer 4

To squash into a smaller space

Question 5

contact force

Answer 5

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

Question 6

deform

Answer 6

To change shape

Question 7

drag force

Answer 7

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

Question 8

driving force

Answer 8

The force that is pushing or pulling something

Question 9

elastic limit

Answer 9

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

Question 10

electrostatic force

Answer 10

The force acting between two charged objects

Question 11

equilibrium

Answer 11

Balanced

Question 12

ectension

Answer 12

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

Question 13

field

Answer 13

A region where something feels a force.

Question 14

friction

Answer 14

The force that resists movement because of contact between surfaces.

Question 15

gravity

Answer 15

A non-contact force that acts between two masses

Question 16

Hooke’s Law

Answer 16

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

Question 17

interaction pair

Answer 17

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

Question 18

kilogram(kg)

Answer 18

A unit of mass, symbol kg

Question 19

lubrication

Answer 19

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

Question 20

magnetic force

Answer 20

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

Question 21

mass

Answer 21

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

Question 22

Newton (N)

Answer 22

The unit of force, symbol N.

Question 23

newton meter

Answer 23

A piece of equipment used to measure weight in Newtons.

Question 24

non-contact force

Answer 24

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

Question 25

pull

Answer 25

A type of force.

Question 26

push

Answer 26

A type of force.

Question 27

reaction

Answer 27

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

Question 28

resistive forces

Answer 28

Any forces that act to slow down a moving object.

Question 29

streamlined

Answer 29

Shaped to reduce resistance to motion from air or water.

Question 30

tension

Answer 30

A stretching force.

Question 31

unbalanced

Answer 31

Opposing forces on an object that are unequal.

Question 32

water resistance

Answer 32

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

Question 33

weight

Answer 33

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