Weight, Mass, Gravity, and Resultant Forces (72 & 73)

Question 1

What is Gravity?

Answer 1

Gravitational Force is the Force of attraction between two masses.

Question 2

What is the effect of Gravity?

Answer 2

It causes objects to Accelerate towards the Earth.

Question 3

At what rate does Gravity cause things to be accelerated towards the Earth?

Answer 3

About 10m/s²

Question 4

What is Mass?

Answer 4

Mass is the ‘amount of stuff’ in an object. It can be measured in units such as Kg.

Question 5

What is Weight?

Answer 5

The Weight of an object is the Force of Gravity acting upon its Mass.

Question 6

What units do we measure Weight in?

Answer 6

Newtons

Question 7

What is the formula for Weight?

Answer 7

w=m x g

Question 8

What is the Resultant Force of an object?

Answer 8

The Resultant Force of an object is the sum of all Forces acting upon it or the ‘net’ Force acing upon an object.

Question 9

What does it mean if the Resultant Force of an object is 0?

Answer 9

It means that the object is either stationary or moving at a constant speed.

Question 10

What does a Resultant Force cause?

Answer 10

A change in an object’s Velocity i.e. Acceleration or Deceleration.