Grade 7 Physics Project

What is energy ?

• It is the ability to cause change. ( it’s the ability to do work)

• “It is the amount of force applied per unit of area”

• The more the particles are compressed , the more often they collide increasing the Pressure

• The pressure of a gas increases if the volume decreases

What is kinetic energy ?

• What is the final volume of a gas

• It is energy due to motion.

• The faster an object moves, the more kinetic energy it has.

What is potential energy?

• Potential energy is stored energy due to the interactions between objects or particles.

• This change in shape is where the elastic potential energy is

  stored .

• all of the above

Gravitational Potential Energy depends on the object’s weight and height.

• false

• true

Elastic Potential Energy is ?

• is energy stored in objects that are compressed or stretched.

• is energy stored in the chemical bonds between atoms.

• is released when chemical reactions

  occur

Chemical potential energy is energy

stored in the chemical bonds between

atoms.

• true

• false

A man pushes a box with a force of 15 N. The box travels 2 meters. What is the total work done on the box?

• 39

• 30

• 65

• 200

It is the total energy of an object or group of

objects due to large-scale motions and

interactions

• Sound Energy

• Mechanical Energy

• Electric Energy

• Radiant Energy-

-It is the energy due to the motion of

particles that make up an object.

-It comes from the temperature of the

heated substance.

• Nuclear Energy

• Mechanical Energy

• Sound Energy

• Thermal Energy

It is the energy that electromagnetic waves carry

• Light Energy

• Sound Energy

• Nuclear Energy

• Electric Energy