Dexter's Camp Grade 8 Science Diagnostic Test

An object tends to maintain its state of motion. What is this tendency?

• Velocity

• Force

• Inertia

• Friction

What causes a rolling ball to stop?

• Gravity

• Unbalanced forces

• Used-up force

• Decreasing force

Why wear seatbelts in cars?

• To stay still

• For fashion

• For safety during stops

• To use equipment

Which shows work being done?

• Lifting a barbell

• Pushing a wall

• Carrying a basket while walking

• Standing still

Where does sound travel slowest?

• Liquid

• Plasma

• Gas

• Solid

What happens to the speed of sound as temperature increases?

• Doubles

• Decreases

• Increases

• Stays the same

Which color has the most energy when light passes through a prism?

• Green

• Violet

• Blue

• Red

Why is red the least bent color in a prism? It has the...

• Highest frequency

• Highest wavelength

• Lowest frequency

• Lowest wavelength

Two cups have hot coffee; Cup A has a metal spoon. Which cools faster?

• Same

• Cup A

• Cup B

• Alternate

Heat is the quantity of _______ energy absorbed or released.