Force Motion Energy

A flashlight produces light energy by using which of the following types of energy from batteries?

• solar

• electrical

• nuclear

• sound

An object produces sound because it

• reflects light from the sun

• generates electrical energy

• absorbs hear from water

• causes air to vibrate

What type of energy is used to bake a cake?

• thermal

• sound

• mechanical

• light

What form of energy does a bow and arrow demonstrate?

• Electrical

• Sound

• Thermal

• Mechanical

All of the following objects are used to produce heat or light energy EXCEPT

• bicycles

• candles

• ovens

• lamps

All of the following objects are conductors of electricity EXCEPT

• a steel fork

• a rubber band

• an aluminum nail

• a copper penny

Conductors allow thermal and electrical energy to pass through easily. Insulators prevent the flow of thermal and electrical energy. Which of the following items is a poor conductor and good insulator?

• silver

• stone

• wood

• copper

Students have short and tall ramps, and toy cars with which to create an investigation. which of the following is a testable question they could answer in an investigation using these materials?

• What kind of material should be used to make roads?

• Which kind of toy car is the overall best kind to buy?

• How does ramp height affect the distance the car rolls?

• What kind of scientist can best explain how cars work?

Without friction...

• An object keeps moving

• An object will stop

• and object will slow down

• and object will speed up

Force is

• when an object moves

• a push or a pull

• a change in direction

• a force that slows or stops a motion