Physical Science Review

Front

What is sound reflection?

Back

Sound reflection is the bouncing back of sound waves when they hit a surface, which can amplify the sound.

Tags

NGSS.MS-PS4-2

Front

How does sound travel through different mediums?

Back

Sound travels faster through solids than through liquids and gases because particles are closer together, allowing sound waves to transmit more quickly.

Tags

NGSS.MS-PS4-2

Front

What is the effect of heat on chemical reactions?

Back

Increasing heat generally speeds up chemical reactions by providing energy that helps break bonds and allows molecules to collide more frequently.

Tags

NGSS.HS-PS1-5

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. Weight can change depending on the gravitational pull.

Front

What happens to the mass of an object when it is divided?

Back

The total mass remains the same regardless of how many pieces an object is divided into.

Tags

NGSS.MS-PS1-5

Front

What is net force?

Back

Net force is the total force acting on an object after all the individual forces are combined, determining the object's motion.

Tags

NGSS.MS-PS2-2

Front

What is resonance in sound?

Back

Resonance is the amplification of sound that occurs when an object vibrates at the same frequency as the sound waves.

Front

How does gravity affect weight on different planets?

Back

Weight varies on different planets due to differences in gravitational pull, but mass remains constant.

Tags

NGSS.MS-PS2-4

Front

What is the principle of conservation of mass?

Back

The principle of conservation of mass states that mass cannot be created or destroyed in a chemical reaction; it is conserved.

Tags

NGSS.MS-PS1-5

Front

What is the role of heat in baking?

Back

Heat causes chemical changes in ingredients, allowing them to transform into baked goods, such as making a cake rise.

Tags

NGSS.MS-PS1-4