simple machines

work can be thought of as

• energy from the sun
• a type of machine
• a force that moves an object a certain distance

• a force that pulls you toward the earh

Tags

NGSS.HS-PS2-1

What type of simple machine is found on the cap of a pickle jar?

• lever
• inclined plane
• pulley
• screw

A ramp.

• Lever
• Inclined Plane
• Wedge
• Screw

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How can simple machines make work easier?

• by decreasing the force needed to complete the task

• by increasing the friction between the machine and the object

• by adding more work on the object than originally applied

• by removing the force of gravity on the object

Tags

NGSS.MS-ETS1-1

Simple machines can make work easier by reducing the effort force needed to move an object. However, there is a trade off for decreased effort. What is the trade off?

• you have to move a greater distance

• The distance moved is decreased.

• The amount of work is increased.

• The amount of work is decreased.

A doorknob is an example of a _______.

• wheel and axle

• inclined plane

• pulley

• wedge

Tags

NGSS.MS-PS2-1

An example of a lever is a ________.

• car wheels

• drill

• staircase

• hammer

The fixed point around which a lever rotates is know as the

• wheel.

• fulcrum.

• input force.

• output force.

A simple machine that splits an object apart is a _______.

• inclined plane

• fulcrum

• wedge

• lever

Tags

NGSS.MS-PS2-1

What is the formula needed to solve for work?

• w = f/d

• w = f*d

• w = f+d

Tags

NGSS.MS-PS3-5