Centre of gravity (c.g)

YES NO

TRUE

FALSE

Learning Objective: 1.1 Understanding that the centre of gravity affects stability.

Learning Outcomes: Determine the point of equilibrium in regular and irregular shapes. Relate the point of equilibrium as the centre of gravity of objects. Relate the centre of gravity to the stability of objects.

1. The diagram below shows the centre of gravity (c.g) of a circle.

Draw lines and identify where the point of the centre of gravity (c.g) for the regular shape objects below are located.

2. The diagram below shows a ruler in equilibrium when it is balanced at the point of the centre of gravity.

The point of equilibrium is also the centre of gravity. Is the statement above true or false?

Tick (/) in the correct box.

3. The diagram below shows an experiment using two wooden blocks of the same base area.

a. Which wooden block will topple first?

b. Does the centre of gravity affect the stability of an object? Tick (/) the correct answer in the below.

.c.g

Centre of gravity (c.g)

.c.g .c.g .c.g

Learning Objective: 1.1 Understanding that the centre of gravity affects stability.

Answer Scheme

1. The diagram below shows the centre of gravity (c.g) of a circle.

Draw lines and identify where the point of the centre of gravity (c.g) for the regular shape objects below is located.

2. The diagram below shows a ruler in equilibrium when it is balanced at the point of the centre of gravity.

The point of equilibrium is also the centre of gravity. Is the statement above true or false?

Tick (/) in the correct box.

3. The diagram below shows an experiment using two wooden blocks of the same base area.

a. Which wooden block will topple / fall down first?

b. Does the centre of gravity affect the stability of an object? Tick (/) the correct answer in the box below.

TRUE

FALSE

A

YES NO

.c.g