Applied science Unit 2

Which graphs show the correct relationship between kinetic energy and mass?

Diagonal right

energy of motion of particles in a substance

Thermal Energy

stored energy related to positions of atoms with in molecules

Chemical Energy

A worker is holding a filled gas cylinder still. Which two sentences are true about the energy of the filled gas cylinder?

It has gravitational potential energy because of its height. Its atoms and molecules have thermal energy

energy related to an object's movement

Motion Energy

energy released when a nucleus splits or combines

Nuclear Energy

Which example best represents translational kinetic energy?

an apple falling from a tree

Which form of energy increases when a spring is compressed?

elastic potential energy

potential energy.

energy of a compressed spring energy of coal

kinetic energy

energy of guitar string when plucked energy from a flashlight when on

When a pendulum is held high and taut and then is released, the pendulum begins to swing. What's the correct order of the energy transformations in this example? (PE stands for potential energy.

gravitational PE → kinetic energy → thermal energy

energy related to height

gravitational potential Energy

Which two forms of energy does a hairdryer convert electric energy into?

motion energy thermal energy

The image shows street lights powered by solar panels. Which sequence shows the energy transformations taking place in these lights?

radiant energy → electric energy → radiant energy

energy generated by vibration of a string

sound Energy