Module 3

Question 1

what is acceleration

Answer 1

A measurement of how velocity is changing over time (caused by force)

Question 2

What is positive and negative accleration

Answer 2

positive - going up (faster)

negative (going down (slower)

Question 3

What is G FOrce

Answer 3

the force that attracts/pushes everything to the centre of the earth

Question 4

what is the g force on earth

Answer 4

9.8m/s

Question 5

Explain an example of how g force works

Answer 5

when a ball is thrown up in the air it will always come down and speed up as it does come down due to the g force pushing it down

Question 6

What is the g force of an object falling down

Answer 6

negative (-9.8m/s)

Question 7

Exaplain terminal velocity

Answer 7

when the resistance of teh medium in which something is falling (medium can be air for example) creates friction with the surface of the object which prevents further acceleration of a falling object

Question 8

What can terminal velocity be affected by

Answer 8

weight and surface area