Work, Ma and Simple Machine

How does a driver use a steering wheel as a simply machine? 

• The driver is using a wheel and axle to reduce the amount of force.
• The driver is using a lever to steer the vehicle
• The driver is using a pulley and lever to steer the vehicle
• The driver is using a wheel and axle to reduce the amount of work needed to steer the vehicle

How does a movable pulley make lifting objects easier? 

• The amount of force needed is doubled
• the amount of force needed is increased
• the amount of force needed is reduced
• the amount of force needed stays the same

Where should the fulcrum be placed in order for the student to use the least amount of effort possible? 

• point A
• point B
• point C
• point D

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

This is the definition of what? 
Pushing or pulling an object to make it move.

• Friction
• Work
• Acceleration
• None of the Above

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If you use a crowbar to get the lid off of a bucket, what simple machine are you using?

• Inclined Plane
• Pulley
• Wheel and Axle
• Lever

Would it be easier to move a box of the same mass up a ramp that was long and gradual or short and steep?

• long and gradual
• short and steep

Tags

NGSS.MS-PS2-4

A fishing pole is an example of a compound machine. What simple machines are used to make up this compound machine?

• lever, wheel and axle, pulley
• wheel and axle, inclined plane, pulley
• wheel and axle, pulley, inclined plane

Tags

NGSS.MS-PS2-2

Lightbulb

• wedge
• pulley
• incline plane
• screw

Tags

NGSS.MS-PS3-5

Stairs

• wedge
• pulley
• inclined plane
• wheel and axle

Tags

NGSS.MS-ETS1-1

Which type of simple machine would be found on the bottom of a wagon??

• a pulley
• a screw
• a wedge
• a wheel and axle