Friction and Gravity

Friction depends on ___ of surface.

Types of Frictional Force

• Rolling Friction

• Sliding Friction

• Drag

• Lubricants

• Lever

What is the unit of Force?

• Newton

• Pressure

• Kelvin

• Pascal

• Wood

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Walking is an example of which type of friction?

• fluid

• rolling

• static

• sliding

As distance between two objects increase the pull of gravity 

• Increases
• Decreases
• Stays the same

The force of gravity acting on an object is the object's ______.

• mass
• matter
• weight 
• friction 

Tags

NGSS.MS-PS2-4

The law of universal gravitation is credited to whom?

• Einstein
• Galileo
• Darwin
• Newton

Tags

NGSS.HS-PS2-4

Which of the following never changes no matter where in the universe?

• weight
• force
• mass
• pounds

Tags

NGSS.MS-PS1-5

A person would weigh less on on the Moon than on the Earth because . . .

• Moon has more mass, and therefore more gravity
• Moon has less mass, and therefore more gravity
• Moon has more mass, and therefore less gravity
• Moon has less mass and therefore less gravity

Tags

NGSS.MS-PS2-4

A student claims that the gravitational force between two objects depends upon the mass of the objects and the distance between them. Which argument best supports the student's claim?

• If the distance between two objects increases, the gravitational force between the objects will decrease.

• If the distance between two objects decreases, the gravitational force between the objects will disappear.

• If the distance between two objects increases, the gravitational force between the objects will increase.

• If the distance between two objects decreases, the gravitational force between the objects will not change.

Tags

NGSS.MS-PS2-4