Inertia & Mass (1st Law of Motion)

Question 1

Inertia:

Answer 1

A tendency to resistant change in motion

Question 2

Greater mass=

Answer 2

greater inertia

Question 3

Mass:

Answer 3

the amount of matter in an object

Question 4

1st law of motion

(law of inertia)

Answer 4

An object in motion will remain in motion unless acted upon by another force
An object at rest will remain at rest unless acted upon be another force

Question 5

what happens in a car crash?

Answer 5

When in a car that is going 80 m/h you are also going 80 m/h. When the car crashes, you continue moving at 80 m/h unless something stops you, like a seatbelt.

Air bag has 2 elements: Na (sodium, N (nitrogen)