Energy Bellwork

Which is an example of kinetic to mechanical energy?

• I eat a snack so I don't feel tired

• A moving stream turns a waterwheel

• A piece of wood burns and warms nearby campers

• A roller coaster goes down a hill

Which is an example of chemical to thermal energy?

• I eat a snack so I don't feel tired

• A moving stream turns a waterwheel

• A piece of wood burns and warms nearby campers

• A roller coaster goes down a hill

Kinetic energy increases with (pick 2)

• more speed

• less speed

• more mass

• less mass

Energy can be converted into different forms but the total amount of energy __________

• Always changes

• Always stays the same

• Always increases

• Always decreases

Which statement is FALSE

• energy cannot be destroyed

• energy cannot be created

• energy cannot change forms

I want to know if watering my plants more will help them grow taller. What is the independent variable?

• How much water

• How tall the plants are

• The type of plants

I want to know if watering my plants more will help them grow taller. What is the dependent variable?

• How much water

• How tall the plants are

• The type of plants

I want to know if watering my plants more will help them grow taller. What is the constant/controlled variable?

• How much water

• How tall the plants are

• The type of plants

As a roller coaster goes downhill

• kinetic energy is converted into potential energy.

• potential energy is converted into kinetic energy.

• electrical energy is converted into potential energy.

• potential energy is converted into electrical energy.

In which position would an object have a GREATER amount of potential energy?

• resting on the ground.

• on top of a step stool.

• hanging 50 feet from the ground.

• in the hand of a person sitting in a chair.