Stability and Energy

why is the car on the right more stable?

• Its centre of mass is higher
• it has a wider base
• it has more height
• all of the above

Tags

NGSS.MS-ETS1-2

this cupboard is filled with boxes. will it topple over ?

• it will
• it will not
• it will if the weight remains inside the base

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What is the centre of mass ?

• it is a single point at which the object can balance.
• The mass is distributed equally around it.
• the centre of gravity of the object
• All of the above

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

where is the centre of mass of this image

• at 20 mark
• at 42.5 mark
• at 50 mark
• at 100 mark

The diagrams show four solid cones. The centre of mass of each cone is marked by a point labelled M.

Which cone is the most stable

• A

• B

• C

• D

A heavy truck on wheels has a platform to attach to it. A man stands on the platform. The truck does not fall over.

Which position A, B, C, or D could be the centre of mass of the whole system (truck, platform and man) ?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A plane lamina with centre of mass X touches the ground at point P. Which diagram shows the lamina in equilibrium?

• 
• 
• 
• 

Tags

NGSS.MS-ETS1-1

• They would cause the bus become unstable

• The would cause the bus to slow down

• The would increase the kinetic energy of the bus

• The would lower the centre of mass of the bus

Tags

NGSS.MS-PS2-4

B

• A

• B

• C

• D

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-1

NGSS.MS-PS2-2

• A

• B

• C

• D

Tags

NGSS.MS-PS2-4