Kinetic Energy

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

In a tug of war, team x pulled team y with a force of 10000 N a distance of 50 meters. Team y did not win because they were only able to exert of force of 8000 N. Calculate the work for team x.

• 5.0 x 10⁵
• 5.0 x 10^-5
• 5.3 x 10⁴
• 5.3 x 10^-4

An 80 N force has been applied to a block and move it 20 m at 30° along the direction of the force. How much work has been done to the block?

• 1386 J
• 1245 J
• 3215 J
• 1368 J

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

• 12.2
• 13.5
• 12.8
• 11.2

The unit used to measure work is the 

• Watt
• Newton
• Joule
• meter

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

• power
• work
• momentum
• Watt

W=125 J
d=10 m
F=???

• 12.5 N
• 1250 N
• 0.08 N
• 135 N

Tags

NGSS.HS-PS2-1