AP Physics Friction

To find the normal force

• mg

• sin(θ)mg

• cos(θ)mg

• tan(θ)mg

Tags

NGSS.HS-PS2-1

the force due to friction on a bike tire is 70 N. If the coefficient of friction of the road is 0.78, what is the mass of the bike?

• 89.7

• 8.97 N

• 8.97 kg

• 54.6 kg

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

If both boxes are at rest in the picture, what other force is equal to the tension in the string?

• (M1)(g)sin28⁰

• (M1)(g)cos28⁰

• (M2)(g)sin28⁰

• (M2)(g)cos28⁰

Tags

NGSS.HS-PS2-1

Which of the following is equal in magnitude to the Normal Force?

• (M1)(g)sin28⁰

• (M1)(g)cos28⁰

• (M2)(g)sin28⁰

• (M2)(g)cos28⁰

Tags

NGSS.HS-PS2-1

A hockey puck slides on ice at a constant velocity. What is the net force acting on the puck?

• Zero

• Equal to its weight

• Less than its weight but greater than zero

• Depends on the speed of the puck

Tags

NGSS.HS-PS2-1

To find the weight

• mg

• sin(θ)mg

• cos(θ)mg

• tan(θ)mg

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

The force that opposes the force of gravity is called...

• force of acceleration

• normal force

• dissipated force

• irregular force

If both boxes are at rest in the picture, what force is equal to the tension in the string?

• The weight of M1

• The weight of M2

• (M1)(g)cos28⁰

Tags

NGSS.HS-PS2-1

Assuming both objects are at rest, which side of the string has more tension?

• There is more tension on the side by M1

• There is more tension on the side by M2

• The tension on both sides is the same

Tags

NGSS.HS-PS2-1