Question

fill in the blanks using words from the box below.
work pulley wedge inclined plane simple machine
lever screw efficient wheel and axle compound machine
3.07) a(n) __________________________ makes work easier and has no or
few moving parts.
3.08) a(n) __________________________ is made of simple machines.
3.09) ____________________ is the use of force to move an object or change the
direction it is moving.
3.010) a(n) ____________________ is an inclined plane wrapped around a cylinder.
3.011) a(n) ____________________ is two inclined planes that meet at a
sharp angle.
3.012) a(n) __________________________ is also known as a ramp.
3.013) a(n) ____________________ is a rope that wraps around a wheel and axle.
3.014) a(n) ____________________ is a bar that pivots at a fixed point.
3.015) a(n) __________________________ is made of a round shape that
rolls and turns around a rod.
3.016) ____________________ is doing something in the best possible way in the
least amount of time.
choose the best answers.
3.017) ______ which of these is an example of work being done?
a. a child kicks a ball that is rolled to her, and its direction changes.
b. a man pushes hard against a box on the floor, but it does not move.
c. a dog leans against a door, but the door stays closed.
d. a cat sits on the floor.

Explanation:

Each blank is filled using the provided vocabulary, matching the definition to the correct term. For the multiple-choice question, work is defined as force causing movement or direction change of an object.

Answer:

3.07) simple machine
3.08) compound machine
3.09) work
3.010) screw
3.011) wedge
3.012) inclined plane
3.013) pulley
3.014) lever
3.015) wheel and axle
3.016) efficient
3.017) A. A child kicks a ball that is rolled to her, and its direction changes.