Diagnostic test 8th graders

What is the force that pulls objects towards the center of the Earth?

• Magnetism

• Gravity

• Friction

• Momentum

Which of these is an example of an energy transformation?

• A book sitting on a table

• A battery powering a flashlight

• A ball rolling on a flat floor

• Ice melting in a cup

What type of energy is stored in food and batteries?

• Kinetic Energy

• Sound Energy

• Chemical Energy

• Light Energy

What is the energy of motion called?

• Potential Energy

• Kinetic Energy

• Static Energy

• Thermal Energy

Which tool would you use to measure force?

• Thermometer

• Spring Scale

• Ruler

• Stopwatch

What is the standard metric unit for measuring mass?

• Liter

• Newton

• Gram

• Meter

What do we call a push or a pull on an object?

• Work

• Force

• Energy

• Power

Which surface would create the MOST friction for a sliding box?

• Ice

• Carpet

• Polished Wood

• Wet Glass

What is the purpose of a simple machine?

• To create energy

• To make work feel easier

• To reduce the amount of work done

• To eliminate friction

A seesaw is an example of which type of simple machine?

• Pulley

• Inclined Plane

• Lever

• Wheel and Axle