Science 8 Final

What subatomic particle has a positive charge?

• Neutron

• proton

• electron

• photon

Which subatomic particle is NOT located in the nucleus?

• neutron

• proton

• electron

• gluon

What kind of energy is present when the roller coaster is still, at the very TOP of the hill?

• kinetic energy

• gravitational potential energy

• thermal energy

• nuclear energy

The statement "Energy cannot be created or destroyed, only changed in form" is also called...

• The Law of Conservation of Energy

• Mass-energy equivalence

• Law of Universal Gravitation

• Newton's Laws of Motion

Which scientist originated the periodic table of the elements?

• Albert Einstein

• Isaac Newton

• Dmitri Mendeleev

• Marie Curie

Select all correct answers.

Which of the following are part of Newton's Laws of Motion?

• Law of Inertia

• F=ma

• Objects accelerate at the same rate (hammer & feather)

• For every action, there is an equal and opposite reaction.

Answer explanation

Eachof Newton's 3 laws are described.

Identify the RED part of the following chemical reaction:

HCl + NaOH → NaCl + H₂O

• acid

• coefficient

• reactants

• products

Identify the RED part of the following chemical reaction:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

• reactants

• products

• coefficients

• subscripts

Identify the RED part of the following chemical equation:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

• reactants

• products

• coefficients

• subscripts

Identify the RED part of the following chemical equation:

2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O

• reactants

• products

• coefficients

• subscripts