Gravitational Potential Energy Quiz

What is the mass of the SpaceX Falcon 9 rocket used in the example problem?

• 600,000 kg

• 450,000 kg

• 500,000 kg

• 549,054 kg

Which formula is used to calculate the gravitational potential energy in this video?

• PE = G(m1*m2)/r^2

• PE = 1/2 mv^2

• PE = mgh

• PE = -G(m1*m2)/r

What is the value of the gravitational constant (G) used in the calculations?

• 1.62 m/s^2

• 6.67 x 10^-11 N(m/kg)^2

• 9.81 m/s^2

• 3.14

Why is the distance between the Earth and the rocket considered as the radius of the Earth in this calculation?

• Because the rocket is in space

• Because the rocket is at the Earth's surface

• Because the rocket is at the Earth's center

• Because the rocket is underground

What is the calculated gravitational potential energy of the rocket at the Earth's surface?

• -3.44 x 10^13 J

• 3.44 x 10^12 J

• 3.44 x 10^13 J

• -3.44 x 10^12 J

What is the radius of the Earth used in the calculation?

• 6,000 km

• 6,371 km

• 5,000 km

• 7,000 km

What does the negative sign in the gravitational potential energy indicate?

• The rocket is moving away from Earth

• The rocket is bound to Earth

• The rocket is at the center of Earth

• The rocket is not bound to Earth

What must be done to make the potential energy of the rocket zero?

• Add energy to move it infinitely far from Earth

• Subtract energy to keep it at Earth's surface

• Add energy to bring it to Earth's center

• Subtract energy to bring it closer to Earth

What is the significance of the potential energy being zero?

• The object is at Earth's center

• The object is underground

• The object is at Earth's surface

• The object is infinitely far from Earth

What is the purpose of the video conclusion?

• To introduce a new topic

• To summarize a different video

• To provide a detailed calculation

• To encourage viewers to engage and share the content