Unit Test on Gravity and Tides

The mass of an object ___________________________.

• changes, depending on where it is located
• changes randomly
• changes, depending on temperature
• does not change

Tags

NGSS.MS-PS1-5

Suppose an astronaut were to visit a planet where the gravity is half that of Earth.  His MASS on that planet would be ______________.

• half his Earth mass
• the same as his Earth mass
• twice his Earth mass
• zero

______ is the attractive force between any two objects that depends on the objects mass and distance to each other.

• Weight

• Gravity

• Net Force

• Rolling Friction

Tags

NGSS.MS-PS2-4

______ is the gravitational force exerted on an object

• Mass

• Gravity

• Force

• Weight

What are the units for Weight?

• Kg

• N

• N/kg

• Joules

Tags

NGSS.MS-PS2-4

What statement is true?

• Mass never changes. Weight does.

• Weight never changes. Mass does.

• Both mass and weight change because they are affected by gravity.

• Neither mass nor weight change. They are always the same.

The force that causes objects with mass to attract one another.

• Weight

• Gravity

• Mass

• Magnetism

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

NGSS.MS-PS2-5

The gravitational attraction between two objects would increase if both masses are –

• increased, and the distance between them is increased.

• increased, and the distance between them is decreased.

• decreased, and the distance between them is decreased.

• decreased, and the distance between them is increased.

Tags

NGSS.MS-PS2-4

Gravity can be defined as the –

• force of attraction between two or more masses.

• friction created when two objects are in contact.

• energy given off by stars due to nuclear reactions.

• path an object follows as it moves through space.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Gravity attracts all objects towards one another.

• False
• True
• It depends

Tags

NGSS.MS-PS2-4