Which is true about wave?

The internal energy of a substance is the sum of __________.

Loudness is measure in units called the ‘_____’ by mean of noise meters

The transfer of thermal energy between substances that are _________ is called conduction.

The mass of the canoeist is 65kg. Calculate her kinetic energy when travelling on still water at 2.5 m/s.

According to the Bernoulli’s theorem, by reducing the kinetic energy increases the -------------- of the fluid.

The transfer of energy through the movement of electrons, such as in an electric circuit is ____________.

Objects with a higher density than water to float on a water surface without becoming even partly submerged. This is due to _________,

In a pendulum, at which point is the kinetic energy the highest?

An electric heater is ________ efficient because all of the electrical energy supplied is transferred to thermal energy.