Final Exam Review Part 1

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It is measured in meters per second squared (m/s²).

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

If a car accelerates from rest to 20 m/s in 5 seconds, what is its acceleration?

Back

2 m/s².

Front

What is Newton's second law of motion?

Back

Newton's second law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

If a force of 10 N is applied to a 2 kg object, what is the acceleration?

Back

5 m/s².

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances.

Front

What is the law of conservation of mass?

Back

The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

Front

If a reaction starts with 20g of reactants, what is the total mass of the products?

Back

20g of product.

Front

In a chemical reaction, if the mass of the reactants is 50 grams, what is the mass of the products?

Back

50 grams.

Front

What is the formula for calculating force?

Back

Force can be calculated using the formula: F = ma (Force = mass x acceleration).