W,P,E Quiz

How do you calculate power?

• P = W/t
• P = E/t
• P = w * t
• P = bbq/chicken

How do we calculate work?

• W = F * d

• w = f * M

• W = F * A

• w = f * c

How much work is being done with 200 N of force over 426 meters?

• 85,200 J
• 45,620 J
• 90,480 J
• 62,329 J

Tags

NGSS.HS-PS3-1

A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done?

• 50J

• 50W

• 500J

• 500W

The net work done by a net force acting on an object is equal to the change in the kinetic energy of the object.

• Force-Work Theorem
• Work-Kinetic Energy Theorem
• Force-Kinetic Energy Theorem
• Work-Force Theorem

Tags

NGSS.HS-PS3-1

What is the ΔKE of a baseball hit with a force of 6000 N that travels 120 m across the field?

• 6000J

• 43560000J

• 720000J

• 50J

Tags

NGSS.HS-PS3-1

The SI unit of work is?

• Joules
• Watts
• Newtons
• meters

The SI unit for power is...?

• Watts
• Joules
• Newtons
• Meters

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

Tags

NGSS.HS-PS2-1

How much energy is used by a 100 W light bulb over 1 hour? (be sure to convert to seconds first)

• 100 J

• 36,000 J

• 360,000 J

• 240,000 J