Physical Science F24 Review

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each substance retains its own properties. Examples include air, salad, and crude oil.

Front

Which of the following is NOT a mixture: Sugar, Lucky Charms cereal, Crude oil, Air?

Back

Sugar is NOT a mixture; it is a pure substance.

Front

How does pressure in a container change with the number of collisions of gas particles?

Back

Pressure in a container increases if the number of collisions increases.

Front

What happens to the pressure of gas in a heated container?

Back

The pressure will increase when the container is heated.

Front

What is the difference between accuracy and precision in measurements?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent repeated measurements are.

Front

If Lily threw four shots at a target and missed the bullseye each time, how would you describe her shots?

Back

Lily would be considered not accurate and not precise.

Front

What is a chemical change?

Back

A chemical change occurs when a substance transforms into a different substance, involving a change in chemical properties.

Front

In the context of burning a candle, what is the chemical reaction that occurs?

Back

Burning is the only chemical reaction occurring when a candle burns.

Front

What happens to the mass of a candle as it burns?

Back

The mass of the candle decreases as it burns due to the conversion of wax into gases.

Front

What is the definition of pressure in a gas?

Back

Pressure is the force exerted by gas particles colliding with the walls of their container.