11/14/24 ENERGY & RADIOACTIVITY PRACTICE TEST

All types of changes require _____.

• gravity

• gravy

• energy

• heat

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following statements is the law of the conservation of energy?

• Energy can be created but not destroyed. And energy can be transformed or converted from one form of energy to another.

• Energy can neither be created or destroyed. Energy is only transformed or converted from one form of energy to another.

• Energy cannot be created but is destroyed when it is used. Energy is transformed or converted from one form of energy to another until it decreases to nothing.

• Energy can be created and destroyed. Energy is created when objects move and it is destroyed when they stop moving.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Energy from the kinetic energy of particles.

• nuclear

• chemical

• mechanical

• electrical

• thermal

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The SI unit for energy is the _____.

• watt, W

• energon, E

• joule, J

• newton, N

What type of heat transfer occurs when you touch something that feels hot?

• convection

• conduction

• radiation

Answer explanation

CONDUCTION - Heat transfer by contact

CONVECTION - Heat transfer by moving currents through liquids and air

RADIATION - Heat transfer by heat moving through air and space

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What type of heat transfer occurs when warm air circulates in a cool room to warm the room?

• convection

• conduction

• radiation

Answer explanation

CONDUCTION - Heat transfer by contact

CONVECTION - Heat transfer by moving currents through liquids and air

RADIATION - Heat transfer by heat moving through air and space

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What type of heat transfer occurs when you feel the heat of a hot pot on a stove before you touch it?

• convection

• conduction

• radiation

Answer explanation

CONDUCTION - Heat transfer by contact

CONVECTION - Heat transfer by moving currents through liquids and air

RADIATION - Heat transfer by heat moving through air and space

Heat energy always transfers from a substance that has a _____ temperature to a substance that has a ____ temperature.

• high / low

• low / high

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Heat transfer stops between two substances when the substances have ______.

• different temperatures

• the same temperature

Tags

NGSS.MS-PS3-4

The energy of motion is ___ energy.

• potential

• kinetic

• elastic

• chemical

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5