Untitled Lesson

Multiple Select

Select all the quantities that are required to calculate the potential energy of an object at a certain height.

• Mass

• Velocity

• Height

• Acceleration due to gravity

Fill in the Blanks

The rollercoaster car, with a mass of 500 kg, is pulled to the top of its first hill, which is 25 meters high. What is its potential energy at this point?

Open Ended

Explain the difference between kinetic energy and potential energy using examples from the amusement park rides described.

Open Ended

Why is it important to understand how to calculate work and energy in physics?

Multiple Choice

Which of the following is the correct formula for calculating gravitational potential energy?

• PE = mass × g × height

• PE = force × distance

• PE = mass × velocity

• PE = mass × acceleration

Multiple Choice

Which formula would you use to calculate the gravitational potential energy of an object lifted to a certain height?

• PE = m × g × h

• KE = 0.5 × m × v²

• PE = m × v × h

• KE = m × g × h

Multiple Choice

Which of the following values is needed to calculate the kinetic energy of the automatic ticket gate?

• Mass and velocity

• Height and mass

• Height and velocity

• Force and distance

Multiple Choice

As the car drops halfway down the Gravity Drop tower (at 10 meters height), its speed is 15 m/s. What is its kinetic energy at this point?

• KE = 0.5 × 100 kg × (15 m/s)²

• KE = 100 kg × 10 m × 9.8 m/s²

• KE = 0.5 × 100 kg × (10 m/s)²

• KE = 100 kg × 15 m × 9.8 m/s²

Open Ended

If the car climbs a second hill that is 15 meters high, what is its potential energy at the top of this hill?

Open Ended

What is the kinetic energy of the car as it zooms down the first hill and reaches a speed of 18 m/s at the bottom?

Open Ended

If the pirate ship ride (mass 800 kg) swings to a maximum height of 18 meters, what is its potential energy at its highest point?

Open Ended

A bumper car with a combined mass of 200 kg accelerates from rest to a top speed of 3 m/s. How much work did the motor do?

Open Ended

A log boat (mass 600 kg) is lifted to a height of 30 meters at the top of the Cannonball Splash log flume. What is its potential energy at the top of the lift?

Open Ended

If the 800 kg gondola is at the very top of the 50-meter-high Ferris wheel, what is its potential energy relative to the ground?

Fill in the Blanks

The motor that turns the Ferris wheel does 150,000 Joules of work to complete one full rotation. If a rotation takes 60 seconds, what is the average power of the motor in

?

Open Ended

As the gondola moves, its maximum speed is 0.8 m/s. What is its kinetic energy at this speed?

Multiple Choice

Which of the following best describes how teamwork and applied physics contributed to the success of the Whiz Kids' amusement park project?

• Teamwork allowed them to finish quickly, but physics was not important.

• Physics was the only factor in their success, not teamwork.

• Both teamwork and applied physics were essential in building the amusement park.

• Neither teamwork nor physics played a significant role.

Open Ended

How would you explain the difference between work and gravitational potential energy to a friend using examples from everyday life?

Multiple Choice

What is the formula for calculating work in physics?

• Work = Force × Distance

• Work = Mass × Height

• Work = Speed × Time

• Work = Energy × Power