213 ppt 7 mechanical advantage quiz

213 ppt 7 mechanical advantage quiz

12th Grade

28 Qs

quiz-placeholder

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213 ppt 7 mechanical advantage quiz

213 ppt 7 mechanical advantage quiz

Assessment

Quiz

Construction

12th Grade

Practice Problem

Hard

Created by

Trevor Armstrong

Used 10+ times

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28 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term "mechanical advantage" used to describe?

The use of tools and equipment to make tasks easier

The process of making machines more complex

The reduction of input force to a lesser output force

The elimination of manual labor

Answer explanation

The term 'mechanical advantage' refers to the use of tools and equipment to make tasks easier by allowing a smaller input force to achieve a greater output force, thus simplifying work.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do machines do to the input force according to the concept of mechanical advantage?

Reduce it to a lesser output force

Multiply it to a greater output force

Convert it to electrical energy

Eliminate it completely

Answer explanation

Machines multiply the input force to produce a greater output force, allowing tasks to be accomplished more easily. This is the essence of mechanical advantage, making work more efficient.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is using a spanner considered a mechanical advantage?

It is smaller and more compact

It is longer and acts as a bigger lever

It requires more manual effort

It is made of metal

Answer explanation

Using a spanner provides mechanical advantage because its longer length allows it to act as a bigger lever, making it easier to apply force and turn nuts or bolts with less effort.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Into how many categories do levers fall?

Two categories

Four categories

Three categories

Five categories

Answer explanation

Levers are classified into three categories: first class, second class, and third class. Each category is defined by the relative positions of the effort, load, and fulcrum, making 'Three categories' the correct answer.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a first-class lever, where is the fulcrum located?

At one end

In the middle

At the resistance side

At the effort side

Answer explanation

In a first-class lever, the fulcrum is located in the middle, allowing the effort and resistance to be on opposite sides. This arrangement provides a balance point for the lever to function effectively.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a first-class lever?

Wheelbarrow

Crowbar

Tweezers

Fishing rod

Answer explanation

A crowbar is a first-class lever because it has the fulcrum located between the effort and the load, allowing for efficient force amplification. In contrast, a wheelbarrow is a second-class lever, and tweezers and fishing rods are examples of third-class levers.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a Class 2 lever, where is the resistance located?

At the fulcrum

In the middle

At the end

On both sides

Answer explanation

In a Class 2 lever, the resistance is located in the middle, between the effort and the fulcrum. This arrangement allows for a mechanical advantage, making it easier to lift the load.

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