Energy Wrap Up

A pair of tweezers is

• a first class lever

• a compound machine made of two third-class levers

• an inclined plane

• a kind of wedge

Tags

NGSS.MS-PS2-1

A ramp is a _______ that decreases the force required to move an object while increasing the distance the object travels.

• force

• newton

• load

• machine

Tags

NGSS.MS-PS2-2

Mechanical Energy is equal to which two combined energies?

• kinetic and potential

• potential and non-mechaical

• kinetic and non-mechanical

• none of the above

Tags

NGSS.MS-PS3-4

As a dropped penny falls toward the ground, _______ energy is converted to _______ energy.

• thermal, potential

• kinetic, vibrational

• kinetic, heat

• potential, kinetic

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A pendulum will not return to its original position because

• potential energy is inefficient

• the mechanical energy is stored for later

• some of the mechanical energy is converted to thermal energy due to friction

• energy is not conserved

Tags

NGSS.MS-PS3-5

Energy of position is called ________ Energy.

• kinetic

• potential

• nuclear

• chemical

Tags

NGSS.MS-PS3-2

Energy stored in chemical bonds, such as food, is known as _______ Energy

• chemical

• potential

• gravitational

• sound

Friction cases mechanical energy to be converted into which form?

• thermal

• nuclear

• kinetic

• potential

Which sequence describes the energy conversions in a car's engine?

• chemical to thermal to mechanical

• mechanical to thermal to chemical

• thermal to mechanical to chemical

• kinetic to potential to mechanical

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-3

The kinetic energy from an object's motion always changes when which factor changes?

• the object's chemical potential energy

• the object's volume

• the object's direction of motion

• the object's speed

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5