Work at an Angle

A surface, often flat, set at an angle to another surface is a(n)

• pulley

• inclined plane

• wedge

• lever

Tags

NGSS.MS-ETS1-1

a simple machine that uses angles to make work easier when raising and lowering a load

• screw

• lever

• inclined plane

• wheel and axle

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the work done when a force is applied at an angle to the direction of motion?

• Work = Force x Distance x cos(θ)

• Work = Force x Distance x sin(θ)

• Work = Force x Distance

• Work = Force x Distance x tan(θ)

If a force of 10 N is applied at an angle of 30 degrees to the horizontal and moves an object 5 meters, what is the work done?

• 43.3 J

• 50 J

• 25 J

• 30 J

Tags

NGSS.HS-PS3-2

Which of the following represents the correct formula for calculating work done at an angle?

A force is applied at an angle of 45 degrees to the direction of motion. If the force is 20 N and the displacement is 10 m, what is the work done?

• 141.4 J

• 200 J

• 100 J

• 70.7 J

What happens to the work done when the angle between the force and displacement is 90 degrees?

• Work done is zero

• Work done is maximum

• Work done is minimum

• Work done is negative

In which scenario is the work done by a force zero?

• When the force is perpendicular to the displacement

• When the force is parallel to the displacement

• When the force is at 45 degrees to the displacement

• When the force is at 30 degrees to the displacement

A box is pushed with a force of 50 N at an angle of 60 degrees to the horizontal. If the box moves 3 meters, what is the work done?

• 75 J

• 150 J

• 130 J

• 90 J

Tags

NGSS.MS-PS2-2

Which angle between force and displacement results in maximum work done?

• 0 degrees

• 45 degrees

• 90 degrees

• 180 degrees