speed,distance ,time and force

Question 1

define force

Answer 1

something which can change the speed ,direction of movement or shape of an object

Question 2

what is a contact force

Answer 2

a contact force is a force requiring two objects to be in contact by a push or pull

Question 3

what is a non contact force

Answer 3

a non cotact force is a force which does’nt require two objects to be in contact ,a gravational force or magnetic force

Question 4

name some examples of force in everyday life

Answer 4

gravity keeping us on the ground [non contact force]
hands holding a pencil [contact]
pencil writing in a jotter [contact]
breaks on a car {contact ]
using a compass [non contact ]

Question 5

what is an avarage speed

Answer 5

a measure of distance travelled by an object over a period of time

speed= distance
————- <——-this id divide
time

Question 6

what is a stopwatch

Answer 6

a deviceused to measure the time taken by an object to travel a certain distance ,this is measured in seconds

Question 7

what is trundle wheel

Answer 7

a device used to measure the distance travlled by an object , this is measured in meters

Question 8

bar graph

Answer 8

a bar graph will have 1 set of numbers and 1 set of catagories
the one you measure goes up the way

Question 9

line graph

Answer 9

-a line graph will have two sets of numbers
-the measurements or varible goes Y to the sky
-the non measurements or the changeable cvarible goes X across

Question 10

what is a newton

Answer 10

a newton is a unit of force

Question 11

newton balance

Answer 11

a newton balance can be use to measure force