Force, Friction, Work

What is the force that opposes the motion of an object?

• Friction

• Inertia

• Gravity

• Acceleration

Which type of force keeps an object at rest?

• Kinetic friction

• Tension

• Centripetal force

• Static friction

What is the formula to calculate work?

• Work = Velocity x Time

• Work = Mass x Acceleration

• Work = Force x Distance

• Work = Energy / Time

What is the force that acts on an object when it is not moving?

• Kinetic friction

• Dynamic friction

• Sliding friction

• Static friction

Which type of friction occurs when an object is in motion?

• Dynamic friction

• Kinetic friction

• Frictionless

• Static friction

Name the force that pulls objects towards the center of the Earth.

• Friction

• Repulsion

• Gravity

• Magnetism

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the SI unit of force?

• Newton (N)

• Meter

• Joule

• Kilogram

What is the force that opposes the relative motion of two surfaces in contact?

• Friction

• Attraction

• Tension

• Repulsion

How is work calculated when force and distance are given?

• Work = Force x Distance

• Work = Force - Distance

• Work = Force + Distance

• Work = Force / Distance

Which type of friction is greater, static or kinetic?

• Static friction

• Dynamic friction

• Rolling friction

• Frictionless