The Power of Wedges

The Power of Wedges

Assessment

Interactive Video

Science, Physics

10th - 12th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains that a knife is a more effective tool due to its design as a wedge, a type of simple machine. Wedges are essentially two inclined planes joined together, and they function by splitting or cutting materials. The tutorial highlights that the mechanical advantage of a wedge increases when it is longer and thinner, which is why sharpening improves its cutting ability. Examples of wedges include doorstops, chisels, and plows.

Read more

5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of simple machine is a knife considered to be?

Lever

Pulley

Screw

Wedge

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can wedges be described in terms of inclined planes?

As a single inclined plane

As two inclined planes positioned back to back

As a horizontal plane

As a vertical plane

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a powerful example of a wedge that can split wood?

Hammer

Drill

Saw

Axe blade

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the mechanical advantage of a wedge as it becomes longer and thinner?

It increases

It becomes zero

It decreases

It remains the same

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT an example of a wedge?

Doorstop

Chisel

Wheel

Plow