Work, Energy and Power

In order for Work to happen, what 2 things must occur?

• Mass and Displacement
• Force and Mass
• Force and Work
• Force and displacement

What is the Force equation?
W= 

• F * d * cos(θ)
• m * a
• d / V
• F/ d * cos(θ)

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

How many joules of work are done against a cart when a force of 50 N pushes it 1 kilometer away?

• 7000 J
• 5000 J
• 5500 J
• 6600 J

Work of 2000 J is required to push an object 1.5 km. What is the force?

• 2.5 N
• 1.3 N
• 1.6 N
• 12 N

Calculate the work done by a 47 N force pushing a pencil 0.26 m.

• 12.2
• 13.5
• 12.8
• 11.2

Force is a _____ or _______

• simple    complex
• push     pull
• up      down
• in      out

Tags

NGSS.MS-PS2-1

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

Tags

NGSS.MS-PS2-2

What is work?

• A push or pull.
• When the object moves in the same direction in which the force is exerted.
• A change in energy.
• The rate at which energy is transferred.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A force exerted over a distance to move an object is ______________________.

• power
• work
• momentum
• Watt