Energy and Work

Energy stored as a result of position is referred to as ______________ energy.

• potential

• kinetic

• thermal

• chemical

Tags

NGSS.MS-PS3-2

Gravitational potential energy is the energy stored in an object as the result of its:

• height.

• mass.

• velocity.

• direction.

Tags

NGSS.MS-PS3-2

U_grav depends upon which of the following pairs?

• mass and height

• mass and velocity

• speed and momentum

• weight and size

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

More massive objects have greater:

• gravitational potential energy.

• kinetic energy.

• thermal energy.

• velocity.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

In the equation, U_grav = mgh, what is the unit for "g"?

• N/kg

• k·m/s

• m/s²

• grams

Tags

NGSS.MS-PS2-2

To determine the gravitational potential energy of an object, where is the zero-height position?

• It is arbitrarily assigned.

• It is assigned to Earth's surface.

• It is assigned to the top of a lab table.

• It is assigned to the Earth's core.

Tags

NGSS.MS-PS3-2

Kinetic energy (K) is the energy of motion, and it depends upon which two factors?

• mass and velocity

• mass and height

• speed and direction

• weight and size

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Kinetic energy (K) is a scalar quantity, it does not have to indicate direction.

• True

• False

The sum of the kinetic and potential energies of an object is known as its __________________________________.

• mechanical energy

• U_grav

• momentum

• velocity

The work done on an object by a constant force is defined as:

• the amount of force applied over a given distance

• the mass of an object times its velocity

• the height of an object times its weight

• the mass of an object times the speed of light squared