4NT Science Revision Chapters 1-4

Which of the following is an example of elastic potential energy?

• trampoline

• a stretched bow

• a stretched resistance band

• all the above

Which statement is true?

• The higher the object is from the ground, the greater its gravitational potential energy

• The lower the object is from the ground, the greater its gravitational potential energy

Which statement is true?

• Thermal energy travels from a region of higher temperature to a region of lower temperature

• Thermal energy travels from a region of lower temperature to a region of higher temperature

Which is NOT an example of chemical potential energy

• a pair of AA batteries in a circuit

• a meal of fried chicken wings and rice for lunch

• charcoal used in a barbeque

• a tennis ball falling from a height

Principle of conservation of energy states that energy cannot be created or _________ but can only be converted from one form to another

What the formula to calculate Power?

• P = E x t

• P = E / t

• P = E + t

• P = t / E

What is the unit for Power?

• ampere

• volt

• joule

• watt

A wave transfers ______ through vibrations without transferring any part of the medium

What is the highest point of a wave called?

• crest

• trough

• amplitude

• wavelength

What is the maximum displacement of a wave from its rest position called?

• amplitude

• crest

• trough

• wavelength