Energy & Energy Transfer Test Review

Big Idea 10/11 Review

Multiple Select

Chris and Jerimiah are building a complete circuit in science. They want the lightbulb to turn on and off, so they must choose a material to act as the light switch that will open and close their circuit. Select all of the materials that could be used as the light switch.

• rubber

• penny

• paper clip

• cloth

Conductors

• Conductors are materials like metal that allow thermal and electric charges to flow easily through them.

• Copper, Aluminum, Steel, Water

Multiple Choice

Tasha is building a solar oven and is trying to decide which material she should use to cover the top of it. Which material would allow the thermal energy from the sun to easily travel through?

• Cloth

• wood

• aluminum foil

Multiple Choice

What does this image demonstrate about light?

• Light can bend on a shiny surface.

• Light can bend on a mirror.

• Light can reflect on a mirror.

• Light can be absorbed by shiny surfaces.

Light

• If the surface of the object or substance is reflective (shiny) the light will reflect.

• When light travels from one substance to another, it bends

• When light hits other objects, like a black t-shirt, it absorbs, or is taken in.

Multiple Choice

What can you conclude about these two sounds?

• The top sound wave is a quiet pitch. The bottom wave is a loud pitch.

• Both sound waves are demonstrating a loud pitch.

• The top sound wave is a high pitch. The bottom sound wave is a low pitch.

• The top sound wave is a low pitch. The bottom sound wave is a high pitch.

Open Ended

What energies is this light bulb emitting?

Multiple Select

Choose all of the following that demonstrate a change caused by applying mechanical energy.

• Balancing a book on your head.

• Throwing a dodgeball.

• Sitting on a swing.

• Pushing a friend down a slide.

Mechanical Energy

Mechanical energy is the energy that an object possesses because of its position or ability to move.

Fill in the Blank

____________ produces heat energy.

Multiple Select

Select all images that represent an open circuit.

Electrical Circuit

The flow of electricity requires a closed circuit which is a complete loop including a power source, load (light bulb or other thing being pow

Multiple Choice

Miss. Bookout wears oven mitts to protect her hands when she takes her cookies out of the oven. Why does she wear the oven mitts?

• The oven mitts produce static electricity.

• The oven mitts have mechanical evergy.

• The oven mitts insulate her hands and prevent heat from getting to her hands.

• The oven mitts conduct the heat to her hands.

Insulators

• Insulators are materials that heat and/or electricity does NOT flow through easily.

• Some examples of insulators are fabric/cloth, rubber, plastic, wood, etc

Multiple Select

Select all of the following that can explain why the balloons are repelling.

• Both balloons have a positive charge.

• The balloons have different amount of air.

• One balloon has a positive charge and the other balloon has a negative charge.

• Both balloons have a negative charge.

Static Electricity and Balloons

• + - Attract

• + + Repel

• - - Repel

Fill in the Blank

You can charge a balloon by rubbing it on your ________ or clothes.

Multiple Choice

Heat always travels from

• warm objects to cool objects.

• warm objects to hotter objects.

• cool objects to warm objects.

• warm objects to warm objects.

Multiple Choice

Charles is playing a kickball game at recess. He wants to kick the ball. What energy will he need to apply in order for there to be change when he is kicking the ball?

• Charles will have to apply chemical energy to kick the ball.

• Charles will have to apply electrical energy to kick the ball.

• Charles will need to apply energy from his leg to kick the ball.

• Charles will have to apply static electricity to kick the ball.

Multiple Choice

Which of the following describes the primary energy transformation in this photo?

• Electrical -> Mechanical

• Electrical -> Sound

• Electrical -> Electrical

• Electrical -> Chemical

Multiple Choice

Which of the following describes the primary energy transformation in this photo?

• Electrical -> Electrical

• Electrical -> Wind

• Electrical -> Sound

• Electrical -> Light

Multiple Choice

Objects that produce light energy, also produce thermal energy.

• True

• False

Multiple Choice

Objects that emit thermal energy always emit light energy.

• True

• False

Poll

How do you feel about tomorrow's test?

• Let's do this!

• I think I feel good.

• I definitely need to study.

• There's a test tomorrow?!