Centre of Gravity

Where is the centre of gravity of a ball

• On the outside edge of the ball

• A point not touching the ball

• The centre of the ball

• On the top of the ball

What tool can be used to find the centre of gravity?

• Plumb Bob

• Plumb Ball

• Apple Bob

• Sponge Bob

What is the centre of gravity

• The centre of the earth

• An imaginary point at which weight is concentrated

• Gravity

• How objects fall to the ground.

what is one method other than a plumb bob that can be used to find the centre of gravity?

• Dropping the object and seeing how it falls

• Finding the point that the object balances

• Measuring the object with a ruler

• Looking at the lightest part of the object

What stops you from standing up when not leaning forward in your chair?

• Gravity being too strong

• The centre of gravity is moving too much

• The chair putting a force on your body

• The centre of gravity isn't able to shift

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

If one side of an object is heavier than the other where will the Centre of gravity be?

• 3/4 up the object towards the heavier end

• 3/4 up the object towards the light end

• At the Heavy end

• At the lightest end

Where is the centre of gravity of a human?

• Head

• Chest

• Waist

• Feet

Do all objects have a centre of gravity?

• No objects have a centre of gravity

• Only some objects have a centre of gravity

• Only very heavy objects have a centre of gravity

• Yes all objects have a centre of gravity

The centre of gravity of an object depends on it's

• Mass

• Weight

• Gravity

• Density

What is one way you might increase the stability of an object?

• Lower the center of gravity

• Raise the center of gravity

• Increase the height of the object

• Shorten the base of the object

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4