physics

Question 1

volume

Answer 1

the space occupied by an object

Question 2

meniscus

Answer 2

curved upper surface of a liquid

Question 3

mass

Answer 3

the quantity of matter a body is composed of

Question 4

density

Answer 4

the ratio of mass to volume of a substance

Question 5

weight

Answer 5

the downward force of gravity that acts on an object because of its mass

Question 6

what is the equation for finding density

Answer 6

density= mass over volume

Question 7

speed

Answer 7

the distance travalled by an object per unit of time

Question 8

what is the equation for average speed

Answer 8

average speed =total distance traveled over total time taken

Question 9

what is the equation for finding speed

Answer 9

speed= distance over time

Question 10

acceleration

Answer 10

the rate of change of an objects velocity

Question 11

veloctiy

Answer 11

the speed of an object in a stated direction

Question 12

vector quanity( velocity)

Answer 12

has both magnitude and direction

Question 13

scalar quanity (speed)

Answer 13

is something that has magnitude but no direction

Question 14

how to find distance travalled on a graph

Answer 14

area under the speed time graph

Question 15

how to find speed on a distance-time graph

Answer 15

the slope

Question 16

equation for acceleration

Answer 16

change in velocity over time taken

Question 17

Force

Answer 17

the action on one body on a second body

Question 18

Newton

Answer 18

the force required to give a mass of 1kg an acceleration of 1m/s

Question 19

resultant force

Answer 19

the left over force after you cancel out the opposite force

Question 20

gravity

Answer 20

the force that exist between any two objects with mass

Question 21

terminal veloctiy

Answer 21

the greatest speed reached by and object when moving through a fluid

Question 22

what is the equation for force

Answer 22

force= mass times acceleration

Question 23

turning effect

Answer 23

when a force causes an object to rotate or would make the object rotate if there were no resistive forces

Question 24

pivot

Answer 24

the fixed point wich a lever turns

Question 25

moment

Answer 25

the turning effect of a force about to pivot

Question 26

equation for moment

Answer 26

force times perpendicular distance from pivot

Question 27

equilibrium

Answer 27

when no net force and no net moment act on a body

Question 28

centre of gravity

Answer 28

all the mass of an object could be locate here and the object would be the same

Question 29

equation for kinetic energy

Answer 29

1/2 times mass time velocity squared

Question 30

what is the unit for weight.

Answer 30

newtons