8th Grade Final Semester 1

A ______________ is a complete and electric energy flows through it.

• closed circuit
• open circuit
• volt
• electric current

Which law states that energy cannot be created or destroyed?

• Newton's 1st Law
• Newton's 2nd Law
• Law of Inertia
• Law of Conservation of Energy

Which type of energy is associated with an object in motion?

• kinetic
• potential
• mechanical

The sum of both the stored energy and the energy from motion is called ____________ energy.

• kinetic
• potential
• mechanical

_____ is the amount of matter an object contains.

• mass
• weight
• height
• energy

__________ is the energy stored because of an object’s position or height above Earth’s surface.

• Gravitational Potential Energy
• Elastic Potential Energy
• Gravitational Kinetic Energy
• Elastic Kinetic Energy

__________ is the energy stored in something when you push, pull or force it out of shape. Think rubber bands or springs.

• Gravitational Potential Energy
• Elastic Potential Energy
• Gravitational Kinetic Energy
• Elastic Kinetic Energy

In the image below which two positions show where the ball has maximum kinetic energy?

• Position A
• Position B
• Position C
• Position D
• Position E

The diagrams below show a person moving a 50kg object up a ramp. In which diagram is there the least amount of friction on the object?

• 1
• 2
• 3
• 4

The cartoon shows a humorous view of a force of motion. Which statement best summarizes the scientific concept shown in the cartoon?

• A falling boy accelerates at a constant speed.
• The motion of an object constantly changing due to magnetic forces.
• The force of friction causes an object in motion to move faster.
• A body in motion will remain in motion until influenced by an outside force.