Physical Science HW

Luis rubbed a balloon on his hair and held the balloon next to a faucet trickling water. He observed that as the balloon was placed close to the water, the stream of water appeared to “bend” to move out of the way. Which of the following forces is responsible for the stream of water moving away from the balloon?

• Gravity

• Magnetism

• Friction

• Electric

Tags

NGSS.MS-PS2-5

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Gordon is making a list of forces for his science class. Which of the following should Gordon NOT list as a force?

• gravity

• friction

• a push or pull

• mass

The diagram shows three sets of objects. The objects all have the same mass and volume.

Order the sets of objects from greatest gravitational force between them to least gravitational force between them.

• A, B, C

• B, C, A

• A, C, B

• C, B, A

Tags

NGSS.MS-PS2-5

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Which wave has the highest frequency?

• A

• B

• C

• None (same frequency)

Tags

NGSS.MS-PS4-1

Which wave has the longest wavelength?

• A

• B

• C

• None (same wavelength)

match these types of energy with how they can be used

• music, communication

• Microwaves

• "seeing" inside the body (bones)

• Radio

• cooking

• Ultraviolet (UV)

• "seeing" the heat of a person or animal in the dark

• Infrared

• growing plants, tanning, cleaning

• X-Rays

Tags

NGSS.MS-PS4-2

Emma constructed a simple motor. When connected correctly, the coil of copper wire spins. Which of the following best describes the energy transformation that takes place between the paper clips and the spinning coil?

• Chemical energy transforms into electrical energy

• Mechanical energy transforms into electrical energy.

• Electrical energy transforms into mechanical energy

• Mechanical energy transforms into chemical energy.

Tags

NGSS.MS-PS3-5

A group of students are eating in

the cafeteria. As they eat, the students break down the molecules in the food, which releases energy. Which form of energy is stored in the food?

• chemical energy

• elastic energy

• nuclear energy

• thermal energy

Tags

NGSS.MS-LS1-7

If you hold a glass of ice tea on a summer’s day, which of the following will happen?

• Cold will travel from the glass to your hand

• The temperature of your tea will decrease

• The temperature of your hand will increase

• Heat will travel from your hand to the glass

Tags

NGSS.MS-PS1-4

Beth takes a sip of very hot soup and decides to put an ice cube in her bowl. Which best describes what happens next?

• The cold from the ice evaporates in the air

• Heat is destroyed as the ice melts.

• Heat from the soup flows into the ice cube.

• Cold from the ice cube flows into the soup

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4