Gravitational Potential Energy

An Olympic high jumper, with a mass of 82 kg, has a maximum gravitational potential energy of 1970 J. How high was the jump?

• 24 m

• 161,540 m

• 2.45 m

• 201 m

Tags

NGSS.HS-PS3-1

What is the ME of a baseball falling from the sky that has a KE of 100J and PE of 1000J?

• 1100 J

• 900 J

• 1000 J

• 0 J

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

I can calculate potential energy given mass and weight.

Johnny is holding a clorox tablet 3 meters above the pool that has a potential energy of 12J, calculate the mass of the tablet?

• 0.41 N

• 120.6 N

• 36.0 N

• 88.2 N

The units for gravitational potential energy are ___.

• mgh

• Newtons

• joules

• m/s

Tags

NGSS.HS-PS3-2

In the reading, the symbol for Gravitational Potential Energy is ___.

• F_PE

• PE_g

• F_GPE

• G_PE

Tags

NGSS.MS-PS3-2

Why is potential energy a property of a "system" and not a single object?

• because an object's gravitational potential is due to its position relative to its surroundings within a system

• because an object's gravitational potential is due to its motion resulting from the sum of forces acting on the object alone

Tags

NGSS.HS-PS2-4

To solve a problem involving roller coasters like this one, which equation is useful?

• KE = mgh

• a = v/t

• F = m a

• -PE_g = KE

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-4

At the end of the reading, there is a suggested at-home investigation to explore converting potential to kinetic energy. What is the activity?

• throwing a ball with a pet dog

• riding your skateboard down a hill

• rolling a marble down a ruler

• dropping an object from a height

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

The work done by or against the gravitational force depends only on ___.

• the mass of the object

• the value of gravity

• the path between the initial and final points

• the starting and ending points

The reading explores the steps to solve roller coaster problems using the equation shown. During the calculations, which variable will cancel?

• mass

• height

• velocity

• gravity

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2