7th Grade Semester 1 Final

Front

What is Newton's first law of motion?

Back

The tendency of all objects is to resist any change in motion.

Front

What should NOT be worn during a lab?

Back

Loose clothing, dangling jewelry, and sandals should not be worn.

Front

Through which material does sound travel fastest?

Back

Sound travels fastest through metal.

Front

What is the relationship between mass and gravitational pull?

Back

Higher mass creates higher gravitational pull.

Front

What should you do before leaving the science room?

Back

Clean your work area and equipment, return all equipment to the proper storage area, and wash your hands with soap and water.

Front

What is the definition of gravitational pull?

Back

The force by which a planet or other celestial body attracts objects toward its center.

Front

What is the formula for calculating force?

Back

Force = Mass x Acceleration (F = ma).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.

Front

What is sound?

Back

Sound is a type of energy made by vibrations that travels through air, water, or solid materials.

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.