Simple Machines

Work is equal to force times __________.

• distance
• acceleration
• mass

The fixed point that a lever pivots around is called the ___________.

• load
• fulcrum
• incline

If an object is too heavy to move up a ramp, what is the best way to fix the problem?

• Increase the slope of the ramp
• Increase the elevation of the ramp
• Increase the length of the ramp
• Increase the friction of the ramp

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?

• 200 J
• 20.0J
• 100 J
• 10 J

Tags

NGSS.HS-PS3-1

Which is an example of someone using a simple machine to do work?

• a boy runs across a football field
• a banker counts money
• a mother pushes a stroller up a ramp
• a girl eats a sandwich

a hammer being used by a person to remove a nail from a piece of wood?

• wheel an axle
• lever
• screw
• inclined plane

The block and tackle shown uses what kind of simple machine?

• pulleys
• wedges
• screws
• levers

What type of simple machine is this?

• Lever
• Wedge
• Pulley
  Inclined plane
• Wheel and Axel

What type of simple machine is this?

• Wedge
• Inclined plane
• Screw
• Pulley

What type of simple machine is the jar lid?

• Screw
• Inclined plane
• Wheel and axel
• Wedge