Conservation of energy roller coaster worksheet answers

Conservation of energy roller coaster worksheet answers

Student Exploration: Roller Coaster Physics

Directions: Follow the instructions to go through the simulation. Respond to the questions and

prompts in the orange boxes.

Vocabulary:friction, gravitational potential energy,kinetic energy, momentum

Prior Knowledge Questions(Do these BEFORE using theGizmo.)

Sally gets onto the roller coaster car, a bit nervous already. Her heart beats faster as

the car slowly goes up the first long, steep hill.

1.What happens at the beginning of every roller coaster ride?

The car is pulled up a long hill

2.Does the roller coaster ever get higher than the first hill? Explain.

he roller coaster cannot go higher because the total energy

of the roller coaster can’t increase

Gizmo Warm-up

TheRoller Coaster PhysicsGizmo models a roller coasterwith a toy car on

a track that leads to an egg. You can change the track or the car. For the

first experiment, use the default settings (Hill 1= 70 cm,

Hill 2= 0 cm,Hill 3= 0 cm, 35-g car).

1.PressPlay() to roll the 35-gram toy car down thetrack. Does the car break the egg?

2.ClickReset(). SetHill 1to 80 cm, and clickPlay.Does the car break the egg?

3.Click Reset. LowerHill 1back to 70 cm and selectthe 50-gram toy car. ClickPlay. Does

the 50-gram car break the egg?

4.What factors seem to determine whether the car will break the egg?

he mass of the car and the speed of the car determine whether the car will

break the egg

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Conservation of energy roller coaster worksheet answers

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PRODUCT DESCRIPTION

This is a problem that involves a roller coaster which starts from the top of a hill with an initial velocity, before coasting down the hill and cresting a second, shorter hill. In this problem students are tasked with identifying the types of energy present at each point and applying the conservation of energy to calculate the potential energy, kinetic energy, and velocity at each. Friction is neglected in this problem, so the total energy at each point is the same, and thus provides the basis for solving the problem.

The worksheet concludes with follow-up questions that make students analyze the data to help ensure their understanding of the conservation of energy.

Conservation of energy roller coaster worksheet answers

How does conservation of energy apply to roller coasters?

The law of conservation of energy states that within a closed system, energy can change form, but it cannot be created or destroyed. In other words, the total amount of energy remains constant. On a roller coaster, energy changes from potential to kinetic energy and back again many times over the course of a ride.

What is the energy conversion of a roller coaster?

The movement of a roller coaster is accomplished by the conversion of potential energy to kinetic energy. The roller coaster cars gain potential energy as they are pulled to the top of the first hill. As the cars descend the potential energy is converted to kinetic energy.

How mechanical energy is conserved in a roller coaster?

When we lift the roller coaster to the highest point, then the roller coaster moves by itself. This is where mechanical energy conversion and conservation are applied. In other words, if you lift it to a very high point before you start, the roller coaster will have large potential energy.

At what point will the roller coaster move the fastest Why?

Cars in roller coasters always move the fastest at the bottoms of hills. This is related to the first concept in that at the bottom of hills all of the potential energy has been converted to kinetic energy, which means more speed.