Forces on an inclined plane

If an object is at rest on an inclined plane, which of the following forces is greatest?

• Normal Force
• Friction
• Weight
• Both Normal Force and Weight are equal, so they both are the greatest.

Tags

NGSS.HS-PS2-1

Which of the following is the best expression for the Normal Force?

• F_N = mg cos(ϴ)

• F_N = mg sin(ϴ)

• F_N = mg sin(180-ϴ)

• F_N = mg cos(90-ϴ)

Tags

NGSS.HS-PS2-1

What is the x-component of force if the mass of the box is 42kg and the angle is 37º?

• 335 N

• 252 N

• 212 N

• 350 N

Tags

NGSS.HS-PS2-1

What is the net force felt by the 42 kg box on a 37° angle if the force of kinetic friction is 57 N?

• 272 N

• 248 N

• 57 N

• 195 N

Tags

NGSS.HS-PS2-1

A cart rolls down an inclined plane with constant speed as shown in the diagram below. Which arrow represents the direction of frictional force?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

The diagram represents an object being held at rest on a frictionless incline. The net force is equal to

• zero
• normal force
• weight
• friction

Tags

NGSS.HS-PS2-1

A block rests on a ramp, making angle θ with the horizontal. As theta is increased

• the blocks mass will decrease
• the blocks mass will increase
• the blocks component of weight parallel to the ramp will increase
• the blocks component of the weight parallel to the ramp will decrease

An 8.0-newton block is accelerating down a frictionless ramp inclined at 15° to the horizontal. What is the magnitude of the net force causing the block’s acceleration?

• 0N
• 2.1N
• 7.7N
• 8.0N

Tags

NGSS.HS-PS2-1