2425 IA2 Practice Test MOST MISSED - Hall

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

How does mass affect inertia?

Back

Inertia is the resistance of an object to change its state of motion. The greater the mass of an object, the greater its inertia.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded. Examples include air and salad.

Front

What is a chemical change?

Back

A chemical change occurs when substances combine or break apart to form new substances, often indicated by color change, temperature change, or formation of a solid.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is constant speed?

Back

Constant speed means an object is moving at the same speed over a period of time without speeding up or slowing down.

Front

What is negative acceleration?

Back

Negative acceleration, also known as deceleration, occurs when an object is slowing down.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements are chemically bonded, while a mixture is a physical combination of substances.

Front

What is the role of air in combustion?

Back

Air provides oxygen, which is necessary for combustion to occur.

Front

What is the principle of conservation of mass?

Back

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