Physical Science Games

Lupe and Steve each obtained a container. They then added and mixed different materials in their own container. The table below shows what they added and observed after mixing. Based on the information given, which statement best describes what Lupe and Steve made?

• Both of them made a pure substance.

• They both made a mixture, but only Lupe made a solution.

• They both made a mixture, but only Steve made a solution.

• They both made a solution, but only Steve made a mixture.

Tags

NGSS.MS-PS1-2

If an object is moving at a constant speed in one direction, what is needed to change its speed or direction?

• a long period of time

• a balanced force

• an unbalanced force

• a short period of time

Tags

NGSS.MS-PS2-2

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

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

When automobiles are designed, engineers try to maximize their fuel efficiency. Even with modern technology, today's most efficient vehicles can only attain about 30% efficiency. That means of all the chemical energy of the fuel put into an automobile, only 30% of the fuel results in car motion. Which statement best explains why this happens?

• Most of the energy becomes chemical energy.

• Most of the energy is transformed into mass.

• Much of the energy is transformed into heat.

• Much of the energy is destroyed.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How is the balloon able to pick up the pieces of paper?

• Frictional force is overcoming gravitational force.

• Magnetic force is overcoming electrical force.

• Electrical force is overcoming gravitational force.

• Gravitational force is overcoming magnetic force.

Tags

NGSS.MS-PS2-2

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.

Tags

NGSS.MS-PS4-2

Scientists use rovers to study Mars. The rovers are able to move and collect information from different locations on the planet. The following image shows a Mars rover. One Mars rover is named Curiosity. Curiosity had a mass of about 900 kg and a weight of about 8,800 newtons when it was on Earth. If Earth has a stronger gravitational pull than Mars, what is true about the mass and weight of Curiosity now that it is on Mars?

• Its mass is the same, but its weight is different than it was on Earth.

• Its mass and weight are both different than they were on Earth.

• Its weight is the same, but its mass is different than it was on Earth.

• Its mass and weight are both the same as they were on Earth.

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

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.

Tags

NGSS.MS-PS1-2