Energy Unit Review

Two beakers of water are being heated on a stove at the same medium heat setting.  One beaker has 2 cups of water and the other has 8 cups of water.  After 5 minutes what will happen?

• The beaker with 2 cups of water will have a higher temperature.
• The beaker with 8 cups of water will have a higher temperature.
• Both beakers of water will have the same temperature
• The beaker with 8 cups of water will have a temperature of 150F

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

An ice cold soda and a hot cup of coffee are placed near each other in an insulated cooler.  What will happen to the two liquids?

• Both the soda and the coffee will gain heat.
• Both the soda and the coffee will lose heat
• The coffee will gain heat and the ice water will lose heat
• The coffee will lose heat and the soda will gain heat

Tags

NGSS.MS-PS3-5

NGSS.MS-PS1-4

When water behind a dam flows through and turns a generator, what change takes place?

• Heat energy is transformed into mechanical energy
• Sound energy changes into electrical energy
• Chemical energy is used to produce electricity
• Mechanical energy is uded to produce electrical energy.  

Tags

NGSS.HS-PS3-3

When a pot of water is put on a hot stove, the heat gets to the water mainly by

• conduction of heat through a pan
• radiation of heat through the pan
• reflection of the heat from the stove
• convection of heat from the air in the room

If you stick a metal spoon into a hot pot of soup, the handle of the spoon gets hot because

• the hot soup causes a chemical reaction to the metal of the spoon
• the heat from the hot soup is conducted through the spoon
• the hot soup heats the air around the spoon
• the heat from the soup causes a physical change in the handle of the spoon

Tags

NGSS.MS-PS3-3

Which is NOT a form of energy?

• heat
• electrical
• light
• friction

Which of the following is an example of kinetic energy?

• a swimmer standing on a diving board
• a plate on the edge of a counter
• firewood stacked in a fireplace
• a child jumping rope

Tags

NGSS.MS-PS3-1

Light is an example of what kind of energy?

• Gravitational potential energy
• Nuclear energy
• Chemical energy
• electromagnetic energy

Which of these is an example of kinetic energy?

• A goat sanding in a field of grass
• a turtle floating in a pond
• a bass leaping up to catch a fly
• a squirrel holding an acorn

Tags

NGSS.HS-PS2-3

When a ceiling fan is being used, one energy transformation that takes place is

• electrical to chemical
• mechanical to electrical
• chemical to electrical
• electrical to mechanical