Semester Review 2024

Front

What happens to the total mass of a chemical reaction as it takes place?

Back

The mass ALWAYS stays the same.

Front

What does a speed graph indicate when an object is traveling at constant speed?

Back

The object is moving without changing its speed.

Front

If Car A has an acceleration of 40 m/s² and Car B has an acceleration of 60 m/s², which car had the greater force applied to it?

Back

Car B had the greater force applied to it.

Front

Which law explains why the total mass doesn't change during a chemical reaction?

Back

Law of Conservation of Mass.

Front

How is speed defined in physics?

Back

Speed is defined as distance/time.

Front

What is the Law of Conservation of Mass?

Back

It states that mass is neither created nor destroyed in a chemical reaction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

What is the formula for calculating force?

Back

Force = mass x acceleration.

Front

What does a speed graph look like when an object is accelerating?

Back

The graph shows a curve or a straight line with a positive slope.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).