Energy, Simple Machines, Matter

A machine is something that helps us do work with ___________.

• more effort

• less effort

• no effort

Tags

NGSS.MS-PS2-1

This machine has a flat slanting surface. We use it to push objects to a higher place more easily.

• Wedge

• Wheel and axle

• Inclined plane

• Pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

This machine has a rope and a wheel and axle. We use it to lift heavy objects.

• Wheel and axle

• Screw

• Pulley

• Lever

Wheels, levers, pulleys, ramps, screws, and wedges are forms of _______________________.

• potential energy

• simple machines

• chemical changes

• dark matter

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following is not a lever?

• 
• 
• 
• 

As a roller coaster car travels down a hill, which type of change in energy allows it to speed up?

• potential energy changing into heat energy

• potential energy changing into kinetic energy

• kinetic energy changing into heat energy

• kinetic energy changing into potential energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-2

As which of the following do batteries for a watch store energy?

• Mechanical

• Solar

• Nuclear

• Chemical

Which of the following states that when one form of energy is converted to another, no energy is destroyed?

• Law of Newton

• Law of Mercedes

• Law of conservation of matter

• Law of conservation of energy

Tags

NGSS.MS-PS3-5

Point A has __________________ energy and Point B has ______________ energy.

• kinetic, potential

• potential, thermal

• thermal, kinetic

• potential, kinetic

Tags

NGSS.MS-PS3-2

What type of energy transfer takes place?

• electrical to chemical

• thermal to electrical

• electrical to thermal

• electrical to nuclear

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-3