forces

Question 1

what is a force?

Answer 1

push, pull or a twist

Question 2

tension

Answer 2

a stretching force

Question 3

unbalanced

Answer 3

opposing forces on an object that are unequal

Question 4

units of mass

Answer 4

kilogram(kg) grams(g)

Question 5

air resistance

Answer 5

a force that acts on any object ,moving through the earth’s atmosphere

Question 6

Friction

Answer 6

the force between two surfaces rubbing against one another causing them to heat up and wear down

Question 7

lubrication

Answer 7

a substance that reduces friction

Question 8

mass

Answer 8

the amount of stuff something is made of

Question 9

up thrust

Answer 9

a force pushing upwards on something in a liquid

Question 10

thrust

Answer 10

a push caused by an engine

Question 11

compress

Answer 11

to squish something into a smaller space

Question 12

Streamlined

Answer 12

shaped to reduce resistance to motion from air or water

Question 13

reaction

Answer 13

the support force provided by a solid surface such as the floor

Question 14

resistive forces

Answer 14

any force that tries to slow down a moving object

Question 15

newton meter

Answer 15

a piece of equipment that is used to measure the weight in newtons

Question 16

deform

Answer 16

to change shape

Question 17

contact force

Answer 17

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

Question 18

extension

Answer 18

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

Question 19

speed

Answer 19

distance/time

Question 20

distance

Answer 20

speed x time

Question 21

Time

Answer 21

distance/speed

Question 22

extension of a spring

Answer 22

new length minus original length

Question 23

best fit line

Answer 23

a line that goes through most of/majority of points of a graph missing out anomalies

Question 24

anomalies

Answer 24

a result that doesn’t fit the pattern/trend

Question 25

gravity

Answer 25

a non contact force that acts between two masses

Question 26

field

Answer 26

a region where something feels force

Question 27

non-contact force

Answer 27

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

Question 28

density

Answer 28

the mass divided by the volume

Question 29

units of density

Answer 29

(g)cm^2

Question 30

unit of force

Answer 30

newtons (n)

Question 31

elastic limit

Answer 31

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

Question 32

water resistance

Answer 32

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