Forces and speed

Question 1

Calculation for distance?

Answer 1

speed x time

Question 2

Calculation for speed?

Answer 2

distance/time

Question 3

Calculation for time?

Answer 3

distance/speed

Question 4

air resistance

Answer 4

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

Question 5

balanced

Answer 5

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

Question 6

compress

Answer 6

to squash into a smaller space

Question 7

contact force

Answer 7

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

Question 8

deform

Answer 8

to change shape

Question 9

drag force

Answer 9

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

Question 10

driving force

Answer 10

the force that is pushing or puling something

Question 11

elastic limit

Answer 11

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

Question 12

electrostatic force

Answer 12

the force acting between two charged objects

Question 13

equilibrium

Answer 13

balanced

Question 14

extension

Answer 14

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

Question 15

field

Answer 15

a region where something feels a force

Question 16

friction

Answer 16

the force that resists movement because of contact between surfaces

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 interacts there is a force on each one that is the same size but in opposite directions

Question 20

kilogram (kg)

Answer 20

a unit of mass, symbol kg

Question 21

lubrication

Answer 21

a substance that reduces friction between surfaces when they rub together

Question 22

magnetic force

Answer 22

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

Question 23

mass

Answer 23

the amount of matter a thing is made up of

Question 24

newton (N)

Answer 24

the unit of force, symbol N

Question 25

newton meter

Answer 25

a piece of equipment used to measure weight in newtons

Question 26

non-contact force

Answer 26

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

Question 27

pull & push

Answer 27

types of force

Question 28

reaction

Answer 28

the support force provided by a solid surface like a floor

Question 29

resistive forces

Answer 29

any forces that act to slow down a mving object

Question 30

streamlined

Answer 30

shaped to reduce resistance to motion from air or water

Question 31

tension

Answer 31

a stretching force

Question 32

unbalanced

Answer 32

opposing forces on an object that are unequal

Question 33

water resistance

Answer 33

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

Question 34

weight

Answer 34

weight is a force