Work Energy and Power

True or false: when the distance an object moves is zero the work done on the object is also zero.  

• True
• False

True or false: a 10N force over a distance of 5m requires more work than a 20N force over a distance of 2m.

• True
• False

True or false: work is done on an object when a force causes a Movement of the object.

• True
• False

Tags

NGSS.MS-PS3-5

Power is defined as the quantity that measures the rate at which _____ is done or energy is transformed.

• energy
• time
• work
• elasticity

Tags

NGSS.MS-PS3-5

What is work?

• the use of force
• exert a force 
• force applied to move an object 
• moving an object

How is work calculated?

• force/distance
• energy x distance
• force x distance
• energy/time

What is the unit of measurement for work?

• Newton
• Watt
• Meter
• Joule

How much work is done if a boy pulls a sled 2 m with a force of 20 N? 

• 10 J
• 40 J
• 22 J
• 12 J

What is energy?

•  cause of force
• ability to do work
• direction of a force
• needs to be visible

What does work transfer?

• force
• power
• energy
• gravity

Tags

NGSS.HS-PS3-1