WEEK 14-Roller Coaster Physics

Which of Newton's laws explains why a roller coaster moves forward?

• Newton's law of universal gravitation

• Newton's second law of motion

• Newton's third law of motion

• Newton's first law of motion

According to Newton's Second Law, what happens to the acceleration of a roller coaster if the force applied to it increases?

• The acceleration of the roller coaster increases.

• The acceleration of the roller coaster becomes negative.

• The acceleration of the roller coaster remains the same.

• The acceleration of the roller coaster decreases.

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Which of Newton's laws explains why a roller coaster experiences a force pushing it upwards when it goes down a hill?

• Newton's first law of motion

• Newton's second law of motion

• Newton's law of universal gravitation

• Newton's third law of motion

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Which type of energy does a roller coaster have at the top of a hill?

• thermal energy

• potential energy

• nuclear energy

• kinetic energy

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Which type of energy does a roller coaster have at the bottom of a hill?

• thermal energy

• kinetic energy

• nuclear energy

• potential energy

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What is the formula for calculating potential energy?

• potential energy = force × distance

• potential energy = mass × gravity × distance

• potential energy = mass × acceleration × height

• potential energy = mass × gravity × height

Which of the following factors affect the potential energy of a roller coaster?

• Height and mass

• Temperature and pressure

• Speed and friction

• Color and shape

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Which of the following factors affect the kinetic energy of a roller coaster?

• Color and shape

• Temperature and humidity

• Height and weight

• Mass and speed

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What is an important consideration in roller coaster design to ensure a smooth and safe ride?

• Lack of safety restraints

• Sharp turns

• Loop-de-loops

• Banking or tilted tracks

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Why does a roller coaster eventually come to a stop if it is not powered?

• Because of the law of conservation of energy.

• Because of the law of conservation of momentum.

• Because of the friction and air resistance.

• Because of the gravitational pull.

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