Science Review

An unbalanced force causes:

• change in mass
• acceleration
• balanced forces
• change in time

Tags

NGSS.MS-PS2-2

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which forms of energy do the stars found in the Milky Way Galaxy give off?

• light and heat energy

• mechanical and light energy

• chemical and heat energy

• sound and light energy

Tags

NGSS.HS-ESS1-1

What could cause sugar water to no longer be considered a solution?

• filter the sugar water solution

• freeze the sugar water solution

• boil the sugar water solution

• add more sugar than water to the solution

Which of the following transformations of energy best demonstrates electrical energy being changed into heat energy?

• computer

• clock

• blender

• hand dryer

Which of the following describes a chemical change that is affected by temperature?

• burning coal for the production of electricity

• chopping wood from a tree trunk

• melting gold into a piece of jewelry

• water evaporating from a plant leaf

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which factor most likely slows down a rolling marble on a concrete surface?

• the pull of gravity on the marble

• the air resistance against the marble

• balanced forces on the marble

• the friction between the marble and the concrete floor

Mr. Wilson's class is investigating the properties of minerals. In the first part of the investigation, they are breaking minerals using a hammer and a chisel. Which description best explains the property of minerals Mr. Wilson's class is investigating?

• luster

• streak color

• cleavage

• hardness

Different environments have different weather conditions. Which of the following environments has low temperatures and less humidity?

• swamps

• deserts

• mountains

• both swamps and deserts

Stored water in a reservoir can be used to create electricity. Once released, the rushing water spins the turbines causing the generator to move and produce electricity.

What type of energy is most likely being described above?

• hydroelectric energy

• geothermal energy

• wind energy

• solar energy