HS Physics Static Friction

Which would be the best definition of "normal force"?

• The frictional force opposing the motion of an object.
• The gravitational force pulling an object downwards.
• The force acting parallel to the surface of an object.
• The force exerted by a surface perpendicular to an object in contact with it.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-5

What is static friction?

• Static friction is the force that allows two surfaces to slide easily.
• Static friction is the force that occurs only when objects are in motion.
• Static friction is the force that pulls objects towards each other.
• Static friction is the force that prevents two surfaces from sliding past each other.

The friction that exists between two objects moving relative to each other is called:

• Kinetic friction
• Static friction
• Rolling friction
• Fluid friction

True or false: Static friction is stronger than kinetic friction

• True
• False

What is it called when two non-moving surfaces stick together slightly,

due to some light chemical bonding between the materials?

• Friction
• Cohesion
• Tension
• Adhesion

A push or pull, measured in Newtons is called what?

• Acceleration
• Force
• Velocity
• Mass

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2