Physical Science Review

The Sun emits light. Which statement correctly describes sunlight?

• It has only visible light.

• It has only visible and ultraviolet light.

• It has visible, infrared, and ultraviolet light.

• It has only visible and infrared light.

The periodic table organizes elements according to certain properties. Part of the periodic table is shown below. Which element has properties most similar to bromine (Br)?

• krypton (Kr)

• selenium (Se)

• oxygen (O)

• fluorine (F)

Wind is increasingly being used as a source of energy. A wind turbine is shown below. What type of energy transformation is the wind turbine designed to do?

• electrical to chemical

• kinetic to electrical

• heat to electrical

• heat to mechanical

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NGSS.MS-PS3-5

Bryan and Alyssa are playing tug-of-war against Daniel and Maria. Bryan and Alyssa are exerting a combined force of 10 N. Daniel and Maria are exerting 12 N of force. Which of the following has resulted?

• an unbalanced force moving everyone in Bryan and Alyssa's direction

• an unbalanced force moving everyone in Daniel and Maria's direction

• a balanced force moving everyone in Daniel and Maria's direction

• a balanced force leaving everyone in the same place

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NGSS.MS-PS2-2

An atom of an element can be modeled in several ways. The diagram below shows one model of an atom. What can be located in the nucleus?

• protons and neutrons

• protons and electrons

• electrons and neutrons

• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

Light waves can be reflected, refracted and absorbed. Which of the following is an example of light waves being absorbed?

• A ray of light travels from the Sun to Earth's atmosphere.

• A mirror changes the direction of a light ray.

• A magnifying lens increases the image size of a penny.

• A road's black pavement becomes hot in the sunlight.

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NGSS.MS-PS4-2

A scientist wants to break down a newly discovered element. She wants to break it down to the smallest particle that retains the element's chemical properties. What particle would the scientist end with after this process?

• a proton

• a molecule

• an atom

• an electron

Tags

NGSS.MS-PS1-1

A student collects information on two different liquids. The table below compares each of the liquids.

Based on the information given, which statement best describes liquids X and Y?

• Liquid X is a base, and liquid Y is an acid.

• Liquid X is an acid, and liquid Y is a base.

• Both liquids are acids.

• Both liquids are bases.

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NGSS.MS-PS1-2

Which event is an example of a contact force?

• a person pulling a sled

• a nail being attracted to a magnet

• a leaf falling from a tree

• an electric charge jumping from a sweater to a person

What characteristic feature of a wave is indicated by the letter C on the diagram below?

• amplitude

• loudness

• wavelength

• frequency

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NGSS.MS-PS4-1