Grade 6 -Simple Machine

Identify this simple machine

• Lever
• Wheel & Axle
• Inclined Plane
• Screw

This picture is an example of a _________.

• pulley
• wedge
• wheel and axle
• screw

Stairs

• wedge
• pulley
• inclined plane
• wheel and axle

Tags

NGSS.MS-ETS1-1

What is effort (input) force?

• the force required by a machine in order to accomplish work (the force you put on the machine)
• the force which an effort force must overcome in order to do work on an object via a simple machine.
• the force the machine exerts on a object
• the output work times the input distance

Tags

NGSS.MS-PS2-2

What is mechanical advantage?

• The advantage a machine has over a bicycle

• A measure of how much a simple machine reduces work

• A measure of when is the best time to use a simple machine

• the number of times a machine increases input force

If the weight of the block is 10N, how much force does one have to apply to lift it using this pulley (MA=2)?

• 2N
• 5N
• 10N
• 15N

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A box of weight W is lifted by a force F using a lever as shown below.

What is the mechanical advantage of the lever (MA=Input Distance/Output Distance)?

• 0.5

• 2

• 3

• 6

What is the mechanical advantage of this pulley system?

• 2
• 3
• 4
• 5

Tags

NGSS.MS-PS2-4

Using a lever, Joe is able to lift a 10,000 N car off of the ground with a force of 1000 N. What is the mechanical advantage of the lever (MA=Output Force/Input Force)?

• 1

• 10

• 100

• 1000

which of the following levers saves effort ....

• scissors

• fishing tool

• nutcracker

• sweet holder