Energy Final

Front

What happens to the chemical bonds in a matchstick when it is lit?

Back

The chemical bonds are broken.

Front

What is the SI Unit for Mass?

Back

Kilogram (Kg)

Front

True or False: The farther you move an object, the more work you do.

Back

True

Front

What is the formula for calculating gravitational potential energy (GPE)?

Back

GPE = mass × gravity × height

Front

Calculate the gravitational potential energy of a 1 kilogram book that is 1 meter above the ground (g = 9.8 m/s²).

Back

9.8 Joules

Front

Which of the following is not a source of chemical energy: Spaghetti, The Sun, Battery, Petroleum?

Back

The Sun

Front

Define work in physics.

Back

Work is done when a force causes an object to move in the direction of the force.

Front

What is the formula for calculating work?

Back

Work = Force × Distance × cos(θ) where θ is the angle between the force and the direction of motion.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy = 0.5 × mass × velocity²