Define the term ultrasound wave
An ultrasound wave is a soundwave with a frequency higher than 20,000 Hz
RA
Related Physics GCSE answers
All answers ▸Which are the forms of heat you know. Explain them briefly including an example
An Electric Kettle is used to boil water. After the water is boiled, the temperature of the water decreases by 22C. The mass of water in the kettle is 0.50 kg. The specific heat capacity of water is 4200 J/kg C. Calculate the energy transferred.
Alice drops an apple from a height of 2 m above the ground. Assuming there is no air resistance, what is the speed of the apple when it hits the ground?
What is polarized light?