Grade 4 Diagnostic Test

__________ is the speed and direction of an object.

• Inertia

• Velocity

• Force

When forces act on an object without changing its motion, they are called __________ forces.

• magnetic

• balanced

• unbalanced

Energy that is stored inside an object is called __________ energy.

• kinetic

• potential

• motion

__________ occurs when two or more objects hit each other with a force.

• Collision

• Mass

• Acceleration

____________ can measure how easy or difficult it is to stop a moving object.

• Velocity

• Weight

• Momentum

Thermal energy __________ as the substance gets warmer.

• stays the same

• increases

• decreases

Chemical energy stored in a battery is a type of ___________ energy.

• potential

• kinetic

• motion

The back and forth motion is called ___________

• mass

• vibration

• inertia

__________ are devices that use light from the sun to produce electricity.

• solar cells

• cell phones

• microscopes

A ________ is a material through which electricity flows easily.

• insulator

• conductor

• solar cell