Energy part 2

Which of the following is the best example of work being done. 

• doing homework
• lifting a box
• pushing a stationary box
• holding a box

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

Tags

NGSS.HS-PS3-3

Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy can be _____________ or changed from one type to another.

• destroyed
• transferred
• created
• ignored

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A cell phone battery dies.  It gets plugged into an electrical outlet to recharge. Which of the following energy transformations occur during the charging?

• mechanical to chemical
• electrical to solar
• chemical to light
• electrical to chemical

What units are used to measure energy?

• Watts
• Newtons
• Joules
• kilowatts

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• Both the potential energy and kinetic energy decrease
• The potential energy decreases while the kinetic energy increases 
• The kinetic energy decreases while the potential energy increases 
• Bothe the potential energy and kinetic energy increase 

Tags

NGSS.MS-PS3-5

Kinetic energy increases as an object moves _________. 

• slower
• faster
• at the same speed
• through an object

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Type of potential energy:
Diesel fuel

• Gravitational
• Chemical
• Elastic/Stored Mechanical

Type of potential energy:
Trampoline at bottom of jump

• Gravitational
• Chemical
• Elastic/Stored Mechanical