Work and Simple Machines

The fixed point that a lever moves around is called a

• load

• resistance

• bar

• fulcrum

A flat supporting surface tilted at an angle, with one end higher than the other, used as an aid to raise and lower a load.

• Simple Machine

• Inclined Plane

• Rise

• Mechanical Advantage

Tags

NGSS.MS-PS3-2

Power is measured in

• m/s2

• Joules

• watts

• F

Which of the following is a compound machine?

• hammer
• screw
• pry bar
• scissors

___________ is done when force is applied to an object and the object moves in the same direction as the force

• power
• machine
• modified lever
• work

Tags

NGSS.HS-PS2-1

What is the unit for work?

• Watts

• Kilograms

• Joules

• Newtons

Energy is the ability to cause change or do work.

• True

• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

You do work ONLY when you exert a force on an object and it moves in that direction.

• true

• false

work transfers

• sweat
• energy
• velocity
• effort

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following is the best example of work being done?

• reading one page of a book

• lifting a box up from the floor

• pushing against a wall

• holding a box while standing