3.1 what are the types of forces

Question 1

forces

Answer 1

an interaction between objects to explain change in motion

Question 2

types of forces

Answer 2

contact forces and non contact forces

Question 3

non contact forces

Answer 3

do not require objects to be in contact to exist

Question 4

contact forces

Answer 4

exist between objects that are in contact

Question 5

types of non contact forces

Answer 5

-gravitational force
-electrostatic force
-magnetic force

Question 6

gravitational force

Answer 6

the pull exerted by earths gravity on any object

Question 7

electrostatic force

Answer 7

the attractive (pull) or repulsive (push) forces between electric charges

Question 8

magnetic force

Answer 8

the attractive (pull) or repulsive (push) forces between magnets

Question 9

types of contact forces

Answer 9

-friction
-air resistance
-normal force
-tension

Question 10

friction

Answer 10

the force that opposes or tends to oppose motion between surfaces in contact with each other

Question 11

air resistance

Answer 11

the frictional force exerted by air that opposes motion of moving objects

Question 12

normal force

Answer 12

the push exerted by a surface on an object pressing on it (the push is always perpendicular to the surface)

Question 13

tension

Answer 13

the pull exerted by a stretched spring, string or rope on an object attached to it