Energy and its Work!

What was the initial problem preventing the "Double Trouble Wheel of Wonder" from operating at the carnival?

• The ride was broken and needed repairs.

• They hadn't sold enough tickets to start it.

• There was no electrical power to run the ride.

• The safety committee hadn't approved its operation.

What advice did Ms. Frizzle give the children about energy after the electrical cable failed?

• They should give up and refund the tickets.

• They should find, harness, and put other sources of energy to work.

• They should wait for the power company to fix the issue.

• They should ask Mikey for help immediately.

How did the children first attempt to get the "Double Trouble Wheel of Wonder" moving after the electrical failure?

• They tried to use a backup generator.

• They attempted to turn it manually using a crank.

• They called an expert to repair the electrical system.

• They used a large fan to push the wheel.

What was Mikey's initial idea to power the Ferris wheel?

• Using falling rocks

• Harnessing wind power

• Connecting it to a motor

• Having people push it manually

What safety concern was raised about using falling rocks to power the Ferris wheel?

• The rocks might break the Ferris wheel structure

• The rocks might hit people riding the Ferris wheel

• There wouldn't be enough rocks to keep it moving

• The rocks would be too heavy for the Ferris wheel to handle

How did the students propose to use wind to move the rocks up the mountain?

• By building a large fan to blow the rocks directly

• By using a windmill to power a conveyor belt

• By pushing the rocks with their hands in the wind

• By waiting for a strong gust of wind to carry the rocks

What was the initial problem the children faced after being rescued from the river?

• They were stranded on a tree.

• They couldn't get the rocks up the mountain.

• Their raft was destroyed.

• They were lost in the wilderness.

What mechanism did the children first design to move the rocks up the mountain using water power?

• A conveyor belt system.

• A series of pulleys and levers.

• A water wheel connected to a catapult.

• A giant slingshot.

What issue did the children encounter with their water-powered rock launcher?

• The water flow was too weak to turn the wheel.

• The catapult's tension bar jammed.

• The rocks were too heavy for the catapult.

• The water wheel broke apart.

What energy source did the children ultimately use to successfully launch the rocks up the mountain?

• Wind energy.

• Geothermal energy.

• Solar energy.

• Kinetic energy.