Gravitational Potential Energy Questions

What is the change in GPE for a 4.2 kg physics textbook that is lifted from a height of 0.85 m above the floor to a height of 1.8 m above the floor?

Mathematical Equivalence

ON

Answer explanation

Tags

NGSS.MS-PS3-2

A bookend of mass 0.48 kg is lowered from a bookshelf that is 1.3 m above the floor to a shelf that is 0.32 m above the floor. What is its change in GPE?

Mathematical Equivalence

ON

Answer explanation

Tags

NGSS.HS-PS2-4

How high must a basketball of mass 0.62 kg be lifted to increase its GPE by 6.7 J?

• 1.1 meters

• 2.2 meters

• 3.5 meters

• 4.4 meters

Answer explanation

A box is lifted 2.2 m above its initial height and its GPE increases by 7.2 J. What is the mass of the box?

Mathematical Equivalence

ON

Answer explanation

Tags

NGSS.HS-PS2-4

An elevator car of mass 810 kg moves from the 9th floor to the 1st floor (a distance of 32 m) of a building at a constant velocity. What is the change in the elevator car’s GPE?

• -253,584 J

• 259,200 J

• 0 J

• -81,000 J

Answer explanation

Tags

NGSS.HS-PS3-1

A 7.2 m long ramp is set at an angle of 42° with the floor. An 11 kg box is pushed up the ramp. What is the change in GPE of the box?

• A) 500 J

• B) 520 J

• C) 540 J

• D) 560 J

Answer explanation

Tags

NGSS.HS-PS3-1

A 14 kg tricycle slides down a 6.2 m ramp that makes an angle of 22° with the ground. What is the change in GPE of the tricycle?

Mathematical Equivalence

ON

Answer explanation

Tags

NGSS.HS-PS3-1

NGSS.HS-PS2-4

A ramp is set at 32° to the ground. A briefcase of mass 3.2 kg is pushed to the top of the ramp, increasing its GPE by 37 J. How long is the ramp?

Mathematical Equivalence

ON

Answer explanation

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-4

A calculator of mass 0.11 kg is lowered from a bookshelf that is 1.6 m above the floor to a desk that is 0.85 m above the floor. What is its change in GPE?

• 0.081 J

• 0.085 J

• 0.091 J

• 0.095 J

Tags

NGSS.HS-PS3-1

What is the change in GPE for a 5.6 kg lamp that is lifted from the ground to a height of 1.9 m?

• 104.38 J

• 95.76 J

• 110.88 J

• 102.48 J

Answer explanation

The change in gravitational potential energy (GPE) is calculated using the formula GPE = mgh. Here, m = 5.6 kg, g = 9.81 m/s², and h = 1.9 m. Thus, GPE = 5.6 * 9.81 * 1.9 = 104.16 J, which is the correct answer.

Tags

NGSS.MS-PS3-2