Energy Test

Isabelle an ice cube in her hand. After a few minutes, the ice is completely melted. How did energy transfer from her hand to the ice cube.

• radiation

• conduction

• convection

• induction

Tags

NGSS.MS-PS1-4

A hot rock is dropped into a pail of cool water. Heat energy transferred from the rock to the water by

• boiling

• evaporation

• conduction

• radiation

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

A construction worker hit a solid steel wall with a sledgehammer, but the wall did not move. Part of the energy exerted by the worker

• was destroyed by the steel wall

• was converted to heat

• disappeared into the atmosphere

• was stopped by the hard surface

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

A crayon placed on a dark driveway in bright sunlight melted into a colorful puddle. what caused the crayon to melt?

• Solar radiation heated the driveway and then heat transferred to the crayon by conduction.

• Solar radiation heated the driveway and then heated transferred to the crayon by radiation.

• Solar convection heated the driveway and then heat transferred to the crayon by radiation.

• Solar convection heated the driveway and then heat transferred to the crayon by conduction.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

A dark-colored wall becomes warm when the sun shines on it. After sunset, a person standing a meter away can feel warmth from the wall. How does heat transfer from the wall to the person?

• radiation

• conduction

• convection

• insulation

Peter cooks a pastry in a pop-up toaster. Which statement BEST explains how the toaster cooks the pastry?

• When the toaster pops up, it transfers mechanical energy to the pastry.

• When the toaster becomes warm, it transfer heat energy to the pastry.

• When the toaster becomes bright, it transfers light energy to the pastry.

• When the toaster is plugged in, it transfer chemical energy to the pastry.

Tags

NGSS.MS-PS1-4

The pendulum shown moves from point 1 to point 5. Which statement BEST describes the change in energy during motion of the pendulum?

• The kinetic energy at point 3 increases as it moves to point 4

• The potential energy at point 2 increases as it moves to point 4.

• The kinetic energy at point 1 is equal to the potential energy at point 3.

• The potential energy at point 1 is equal to the potential energy at point 3.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS2-2

A student is organizing a room. She moves a box from the floor to a shelf. She wants to estimate the amount of potential energy the box has on the shelf. What information does the student need?

• the volume and mass of the box

• the mass of the shelf and the mass of the box

• the mass of the box and the height of the shelf

• the volume of the box and the height of the shelf

The diagram below shows a convection current. Which set of labels correctly completes this diagram?

• 1: Oil is less dense and floats on water.

  2: Water is more dense and sinks in oil.

• 1: Liquid water evaporates.

  2: Condensed water precipitates.

• 1: Animals take oxygen for respiration.

  2: Plants take one carbon dioxide for photosynthesis.

• 1: Warm air molecules move faster and rise.

  2: Cool air molecules move slower and sink.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

Engineers studying the effects of collisions on automobile frames observed that a collision between a car and a steel post caused a small amount of damage when the car was moving at 2.0 m/s but significant damage when the car was moving 10.0 m/s. What change in the collision explains the difference in damage to the car?

• The car that was moving faster had more kinetic energy

• There was more friction between the car and the post at the higher speed

• The collision took more time when the car was moving slower so there was less damage.

• The amount of energy that the post could absorb decreased when the car was moving faster.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS2-1