Exploring Coefficient of Static Friction

What is the main objective of the video?

• To calculate the weight of a block.

• To determine the coefficient of static friction.

• To measure the angle of an incline.

• To find the normal force acting on a block.

What happens to the block when one end of the plank is raised?

• It falls off the plank.

• It moves upwards.

• It remains at rest but is just about to slide.

• It starts to slide immediately.

Tags

NGSS.MS-PS2-4

Which force acts perpendicular to the incline?

• Normal force

• Parallel force

• Gravitational force

• Frictional force

What is the value of the force acting parallel to the incline?

• 68 Newtons

• 16 Newtons

• 26 Newtons

• 42 Newtons

Tags

NGSS.HS-PS2-1

In which direction does the force of gravity always point?

• Straight down towards the center of the earth

• Upwards

• Parallel to the incline

• Perpendicular to the incline

What is the formula for the force of static friction?

• F = μ * N

• F = μ * g

• F = m * g

• F = m * a

At what point is the force of static friction equal to μ * N?

• When the block is tilted

• When the block is at rest

• When the block is moving

• When the block is just about to slide

What is the normal force acting on the block?

• 26 Newtons

• 42 Newtons

• 68 Newtons

• 16 Newtons

Tags

NGSS.MS-PS2-2

What is the calculated coefficient of static friction?

• 0.62

• 0.42

• 1.00

• 0.26

What does the coefficient of static friction represent?

• The speed of the block

• The ratio between the force of static friction and the normal force

• The angle of the incline

• The weight of the block