Forces and Structures #1

Where the center of gravity of a circle lies?

• At its centre

• Anywhere on its radius

• Anywhere on its circumference

• Anywhere on its diameter

A person weighs _____ on the moon than they do on Earth. 

• less
• more
• the same

Tags

NGSS.MS-PS2-4

Which is the best explanation of the term "weight"?

• A large celestial body that revolves around a star.

• Measurement of the force of Earth's gravity pulling you down.

• A push or a pull.

• Attraction between two objects that is proportional to the masses of the objects.

Tags

NGSS.MS-PS2-4

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

The amount of matter in an object is 

• pressure
• weight
• mass
• force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-2

Any object with mass has gravity.

• True
• Sometimes
• False
• Never

Tags

NGSS.MS-PS2-4

If you are making a bicycle, the main structure you would need is

• solid
• frame
• shell
• combination

____________________is a rigid framework used to support a structure

• bridge

• truss

• abutment

If you are making the foundation of a building, you would need a _______ structure.

• solid
• frame
• shell
• combination

In order for a structure to be stable, the center of gravity must be...

• high
• low
• in the middle
• on the outside