light,heat and sound

Question 1

the transfer of heat through solid materials

Answer 1

conduction

Question 2

materials that allows heat to transfer easily

Answer 2

conductors

Question 3

materials that through which heat passes slowly or not at alk

Answer 3

insulators

Question 4

the transfer of heat from one place to another by movement of in fluid

Answer 4

convection

Question 5

heat can also be transmitted across empty space or vacuum

Answer 5

radiation

Question 6

the heat we received from the sun

Answer 6

radiant energy

Question 7

some scientist say that light behaves like

Answer 7

wave

Question 8

objects through which light cannot pass through is called

Answer 8

opaque materials ex: wood, walls

Question 9

objects through which light can pass through

Answer 9

transparent materials ex: plastic windows, glass

Question 10

materials that allow some light to pass through but scatter them in many directions

Answer 10

translucent materials ex: frosted glasses and paper

Question 11

when the light cannot pass through an object, a dark area is form

Answer 11

shadow

Question 12

it uses shadow to tell the time

Answer 12

sundial

Question 13

the bouncing back of light

Answer 13

reflection

Question 14

when light falls on a smooth surface such as plane mirror, the light rays are reflected in one direction

Answer 14

regular reflection

Question 15

reflection that does not produce clear I and definite image

Answer 15

diffused reflection

Question 16

flat mirror such a the one we use at home, it has plain coating of silver on one side

Answer 16

plain mirror

Question 17

mirror that forms upright images that are always smaller than the object

Answer 17

convex mirror

Question 18

mirror that forms upright magnified images of the object

Answer 18

concave mirror

Question 19

ordinary light also called white light is actually a mixture of different colors

Answer 19

red,orange,yellow,green,violet,indigo and blue

Question 20

the process where the glass prism separates white light into different colors, these colors are the spectrum of white light

Answer 20

dispersion

Question 21

the bending of light as it passes through different materials

Answer 21

refraction

Question 22

the circular movements of fluid that transfers get from bottom of the fluid to the top

Answer 22

convection current