5th Grade Chem, Physics, Waves

Which of the following is a state of matter?

• solid, liquid, and gas

• plasma

• energy

• light

What happens when a chemical reaction occurs?

• The atoms of the reactants remain unchanged.

• Atoms of the reactants rearrange to form new substances called products.

• The atoms of the reactants disappear completely.

• The atoms of the reactants combine to form a single substance.

Which of the following is an example of force?

• Velocity, acceleration, and momentum

• Gravity, friction, and applied force

• Sound, light, and heat

• Photosynthesis, respiration, and digestion

Which of the following has the longest wavelength?

• Gamma rays

• X-rays

• Visible light

• Radio waves

What is the process called when a solid turns into a gas without becoming a liquid first?

• Sublimation

• Condensation

• Evaporation

• Melting

Which of the following is an example of a chemical change?

• Mixing of salt and water

• Burning of wood

• Cutting a piece of paper

• Melting of ice

What is the force that pulls objects towards the center of the Earth?

• friction

• gravity

• magnetism

• electricity

Which of the following is an example of potential energy?

• Stretched rubber band

• A burning candle

• A compressed spring

• A moving car

Which of the following is an example of kinetic energy?

• A ball rolling down a hill

• A book on a shelf

• A stretched rubber band

• A compressed spring

Which of the following is an example of a physical change?

• Burning of paper

• Rusting of iron

• Melting of ice

• Baking a cake