Energy (BI.10) Practice

Energy comes in many forms, and several are often present at once. Which forms of energy are most represented by a lit light bulb?

• chemical, light, heat

• electrical, light, heat

• electrical, light, sound

• mechanical, light, heat

Sasha experiments with an electric motor and a battery. Which is the best example of energy creating change?

• The mass of the motor causes it to be difficult to move.

• Chemicals from the battery cause electricity to flow.

• Friction causes the motor to remain stationary.

• A disconnected wire causes an open circuit.

Tags

NGSS.MS-PS3-5

Energy comes in many forms. Which of the following represents mechanical energy?

• a computer

• a lit television screen

• a pot of cold water

• a windup clock ticking

Which can cause a solid object, such as a rock, to move?

• the mass of the object

• the temperature of the object

• the size or shape of the object

• the energy applied to the object

Tags

NGSS.MS-PS2-2

Tim finished conducting experiments to investigate the effect of salt water on plant growth.

What should he do next?

• develop a question

• record observations

• communicate his results

• conduct an experiment

Which form of energy do our bodies use from the food we eat?

• chemical

• electrical

• light

• mechanical

Tags

NGSS.MS-LS1-7

A textbook falls off of a desk. Which is an example of energy causing motion or creating change?

• The textbook falls for 0.4 seconds.

• The forces on the textbook are balanced.

• The textbook's mass is greater than 1 kg.

• The book makes a sound when it hits the floor.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Several forms of energy can move in waves. Which of these does NOT?

• chemical

• light

• mechanical

• sound

Tags

NGSS.MS-PS4-1

Kim places a pot of water on a hot stove. What could Kim observe that would show that energy is causing change in the water?

• The water is evaporating.

• There is exactly one liter of water in the pot.

• The pot has been on the stove for two minutes.

• The flame of the burner below the pot is burning brightly.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

For the school science fair, Rachel plans to study blue herons at a nearby lake. Kyle will build a model of a beaver dam based on an abandoned dam at a pond. Penny will investigate the effect of temperature on the strength of plastic.

What will Penny be doing in her experimental study that the others will probably NOT do?

• making observations

• drawing conclusions

• developing explanations

• measuring the effects of variables

Tags

NGSS.MS-PS3-4