2425 IA2 Practice Test

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

What is a mixture of an element and a compound?

Back

A mixture of an element and a compound contains both pure substances, where the element retains its properties and the compound retains its chemical properties.

Front

What type of energy is associated with the motion of objects?

Back

Mechanical energy is the energy that an object possesses due to its motion and position.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature and density.

Front

What type of heat transfer occurs in the Earth's mantle?

Back

Convection occurs in the Earth's mantle, where hot material rises and cooler material sinks, driving plate tectonics.

Front

What is constant speed?

Back

Constant speed means an object is moving at the same distance over 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 heat energy?

Back

Heat energy, or thermal energy, is the energy that comes from the temperature of matter. It is the energy of moving particles.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of energy through space by electromagnetic waves, such as light or heat from the sun.