A-LEVEL Physics: 4.1.16: Newton's Laws (Seneca)

Question 1

Newton’s First Law of Motion (NI):

Answer 1

‘An Object will Remain in Constant Velocity or Inertia Until Acted On by an (External), Resultant Force.’

Question 2

Explain the Forces Acting on a Stationary Object.

Answer 2

There are No Resultant Forces Acting on it.

Question 3

What happens if an Object is Moving, & there is No Resultant Force Acting on it?

Answer 3

The Object will Continue Moving in the Same Direction at Constant Speed/Velocity.

Question 4

The Velocity of an Object Will Only Change if…

Answer 4

A Resultant Force is Acting on the Object.

Question 5

Newton’s Second Law of Motion (NII):

Answer 5

F=ma

Force = Mass * Acceleration

Question 6

What is the ‘Resultant Force’?

Answer 6

The Resultant Force is the Sum of All the Forces Acting on an Object.

Question 7

What does it Mean if the Forces Acting on an Object are Unbalanced?

Answer 7

It Means that a Resultant Force is Acting on the Object.

Question 8

The Resultant Force is the ___ Sum of All ___. You Need to Take into Account their ___.

Answer 8

Vector, Forces, Directions.