Matter

Question 1

Matter

Answer 1

physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.

Question 2

Energy

Answer 2

power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.

Question 3

Conduction

Answer 3

the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.

Question 4

Convection

Answer 4

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

Question 5

Radiation

Answer 5

the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.

Question 6

Temperature

Answer 6

the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.

Question 7

energy

Answer 7

the strength and vitality required for sustained physical or mental activity.

Question 8

heat transfer

Answer 8

Heat transfer, also referred to simply as heat, is the movement of thermal energy from one thing to another thing of different temperature.

Question 9

Expand

Answer 9

become or make larger or more extensive.

Question 10

Contract

Answer 10

decrease in size, number, or range.

Question 11

Thermal energy

Answer 11

Thermal energy is energy that comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature.

Question 12

Reflection

Answer 12

the throwing back by a body or surface of light, heat, or sound without absorbing it.

Question 13

Kinetic energy

Answer 13

energy which a body possesses by virtue of being in motion.

Question 14

Chemical energy

Answer 14

Chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction to transform other chemical substances

Question 15

Mechanical energy

Answer 15

Mechanical energy is the sum of kinetic and potential energy in an object that is used to do work.

Question 16

Potenial Energy

Answer 16

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.