EOT -2 G6(2024) DSS

Copper is often found in wiring in homes because

• It is an insulator

• It cannot transfer heat

• It is a good conductor of heat

• It is a good conductor of electricity

As surface area increases, ______________ thermal energy is transferred to the environment.

• More

• Less

• No Equal

• same as

_______________ is an image created by a technology that measures the radiation given off by the objects.

• Thermogram

• Thermal Energy

• Heat image

• Radiation

The symbol of element carbon is

• CO2

• CO

• Ca

• C

What would happen to the motion of the particles inside a basketball if it is left in cold room?

• The motion of the particles decreases

• The motion of the particles increases

• The motion of the particles does not change

• The motion of the particles doubles

Which statement best describes what is taking place in the images?

• The kinetic energy of the particles on the right is the greatest of the three images of particles.

• The particles in the middle have more kinetic energy than the particles on the right

• The particles in the middle have less space between them than the particles on the left, which means they have more kinetic energy

• Energy was added to the particles on the left to give them more energy than the particles in the middle

An example of a substance made up of only one type of molecules is

• Water

• Air

• Carbon dioxide

• Oxygen

Imagine that water in a ice cube tray is 10 ̊C. When this ice cube tray is put into a freezer at -18 ̊C, thermal energy is

• removed from the particles

• absorbed by the particles

• given to the particles

• stored in the particles

The transfer of thermal energy from one material to another by electromagnetic waves is called

• Electromagnetism

• Radiation

• Thermal expansion

• Conduction

Which of the following molecules represents 1:1 ratio?

• H2O

• CO2

• NaCl

• CH4