Final Exam Review Part 1

What is the law that states mass is conserved in chemical reactions?

• Law of Conservation of Energy

• Law of Conservation of Mass

• Law of Conservation of Momentum

• Law of Conservation of Charge

Tags

TEKS.SCI.8.6E

Which of the following is a chemical change?

• Melting of ice

• Rusting of iron

• Boiling of water

• Breaking a glass

Tags

TEKS.SCI.7.6C

Calculate the average speed if a car travels 150 kilometers in 3 hours.

• 45 km/h

• 50 km/h

• 55 km/h

• 60 km/h

Tags

TEKS.SCI.7.7A

Which of Newton's laws explains why you feel pushed back into your seat when a car accelerates?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• Newton's Law of Gravitation

Tags

TEKS.SCI.8.7B

What is the formula for calculating force according to Newton's Second Law of Motion?

Tags

TEKS.SCI.8.7A

Which process is an example of a physical change?

• Burning wood

• Dissolving sugar in water

• Baking a cake

• Digesting food

Tags

TEKS.SCI.7.6C

In the chemical equation for photosynthesis, which element is conserved?

• Oxygen

• Carbon

• Hydrogen

• All of the above

Tags

TEKS.SCI.8.6E

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

• 2 m/s²

• 5 m/s²

• 10 m/s²

• 20 m/s²

Tags

TEKS.SCI.8.7A

Which of the following is an example of Newton's Third Law of Motion?

• A book resting on a table

• A rocket launching into space

• A car accelerating on a highway

• A ball rolling down a hill

Tags

TEKS.SCI.8.7B

What is the average speed of a runner who covers 400 meters in 50 seconds?

• 6 m/s

• 7 m/s

• 8 m/s

• 9 m/s

Tags

TEKS.SCI.7.7A