Mid-term Exam Part 1

Front

All chemical reactions create new substances. True or False?

Back

True

Front

What is Newton's 3rd Law?

Back

For every action there is an equal and opposite reaction.

Front

This energy is due to the position and height. What type of energy is it?

Back

Potential energy.

Front

What is Newton's First Law?

Back

An object at rest stays at rest, and an object in motion stays in motion.

Front

The chemical formula for Baking Soda is NaHCO₃. How many elements make baking soda?

Back

4

Front

What is the definition of kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is the formula for calculating force?

Back

F = ma (Force = mass × acceleration).

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

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 an example of a chemical change?

Back

Rusting of iron.