Mixed Review

The blades of a toy helicopter spin when its circuit is connected to a battery. Which sequence below best identifies the energy changes taking place in the helicopter?

• Potential to mechanical

• Chemical to electrical to mechanical

• Mechanical to thermal to sound

• Chemical to Potential to sound and light

Tags

NGSS.MS-PS3-5

When a car burns gasoline it creates hot air to move the pistons in the engine, which causes the car to move. What energy transformation occur from the fuel to the movement of a car?

• thermal energy to mechanical energy

• thermal energy to chemical energy to mechanical energy

• chemical energy to thermal energy to mechanical energy

• chemical energy to electrical energy

Tags

NGSS.MS-PS3-5

When you drop a basketball it does not bounce back all the way. This is because some of the mechanical energy is 'lost' when it transforms into which of the following ?

• Sound

• Chemical

• Radiant

• Hamster

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the transfer of heat by movement of liquids or gases?

• Radiation
• Convection
• Conduction
• Heat

Tags

NGSS.MS-PS3-4

Warm air is __________ dense than cold air and rises creating convection currents.

• more
• less

Tags

NGSS.MS-ESS2-5

The Gulf Stream is a current that brings warm ocean water from the south to the north. What type of heat transfer is this?

• conduction
• convection
• radiation
• Insolation 

Tags

NGSS.MS-ESS2-6

What is a transfer of heat energy by electromagnetic waves?

• Radiation
• Convection
• Conduction
• Heat

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Heat transfers from an area of ________temperature to an area of ______ temperature.

• high to low
• low to high
• high to high

Tags

NGSS.MS-PS3-4

How many protons are in Gold

• 79

• 197

• 118

• 276

Tags

NGSS.MS-PS1-1

Oxygen has a mass of...

• 8

• 16

• 15

• 6

Tags

NGSS.MS-PS1-1