Forces and Speed

Question 1

How do you work out speed?

Answer 1

distance/time

Question 2

How do you work out the distance travelled?

Answer 2

speed x time

Question 3

How do you work out the time taken?

Answer 3

distance/speed

Question 4

Friction

Answer 4

the force that resists movement because of contact between surfaces.

Question 5

air resistance

Answer 5

the force on an object moving through the air that causes it to slow down

Question 6

Balanced

Answer 6

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

Question 7

compress

Answer 7

to squash into a smaller space

Question 8

contact force

Answer 8

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

Question 9

deform

Answer 9

to change shape

Question 10

drag force

Answer 10

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

Question 11

driving force

Answer 11

the force that is pushing or pulling something

Question 12

elastic limit

Answer 12

the point beyond which a spring will not return to its original length when the force is removed

Question 13

electrostatic force

Answer 13

the force acting between two charged objects

Question 14

equilibrium

Answer 14

balanced

Question 15

extension

Answer 15

the amount by which an object gets longer when force is applied

Question 16

field

Answer 16

a region where something feels a force

Question 17

gravity (weight)

Answer 17

a non-contact force that acts between two masses

Question 18

Hooke’s Law

Answer 18

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

Question 19

interaction pair

Answer 19

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

Question 20

lubrication

Answer 20

a substance that reduces friction between surfaces when they rub together

Question 21

magnetic force

Answer 21

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

Question 22

mass

Answer 22

the amount of matter a thing is made up of

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 and pull

Answer 25

types of force

Question 26

reaction

Answer 26

the support force provided by a solid surface like a floor

Question 27

resistive forces

Answer 27

any forces that act to slow down a moving object

Question 28

streamlined

Answer 28

shape to reduce resistance to motion from air or water

Question 29

tension

Answer 29

a stretching force

Question 30

unbalanced

Answer 30

opposing forces on an object that are unequal

Question 31

water resistance

Answer 31

the force on an object moving through water that causes it to slow down

Question 32

weight

Answer 32

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

Question 33

what is an independent variable

Answer 33

the thing that is changed in the experiment

Question 34

what is a dependent variable

Answer 34

the thing that is measured in the experiment

Question 35

what is a control variable

Answer 35

the thing that is kept the same throughout the entire experiment in order for it to be a valid test