A fixed pulley does not reduce the force needed to lift an object. What, then, is the advantage of using a fixed pulley?

A fixed pulley changes the direction of the force.

A fixed pulley reduces the force.

A fixed pulley does not have any advantages.

In a simple machine, what is the load ?

point where the lever arm pivots

the force needed to move the load

it's a rod or spindle (either fixed or rotating) passing through the centre of a wheel or group of wheels.

it isn't a part of a pulley system.

How do we build a movable pulley?

affix the rope first, hang the load on the wheel, the rope should be placed within the groove of the wheel, the rope should then go around the wheel, the end of the rope should be pulled upwards to lift the load.

affix the rope first, hang the load on the wheel, the rope should be placed within the groove of the wheel

hang the load on the wheel, the rope should be placed within the groove of the wheel, the rope should then go around the wheel, the end of the rope should be pulled upwards to lift the load.

affix the rope first, hang the load on the wheel, the rope should be placed within the groove of the wheel, the end of the rope should be pulled upwards to lift the load.

What is the use of pulley shown here?

To lift containers to / off the truck

What is the use of pulley shown here?

To lift containers to / off the truck

What is the use of pulley shown here?

To lift containers to / off the truck

Study the figure. Which method will help the two workers complete their work faster?

Method X because it is easy to raise the bricks up with less force.

Method Y because it is easy to raise the brick up with less force.

Grade 4 Pulleys Review

Authored by Ms S. Hathiramani Nandwani

Science

4th Grade

NGSS covered

Used 27+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does this image represent?

A pulley

A wedge

A lever

A wheel and axle

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are two types of pulleys?

wings, fries

load. weight

fixed, movable

effort, force

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pulleys make work:

Easier

Rigorous

A pulley is an example of a:

Simple Machine

Book

Science Tool

Test Taking Strategy

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Identify the type of pulley

fixed

moveable

block and tackle or pulley system

Identify the type of pulley

Fixed

Moveable

Block and Tackle or pulley system

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diagram shows a movable pulley system. When moving a load, this pulley system changes the —

direction of the force.

amount of force needed.

pull of gravity on the load.

overall mass of the rope.

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Grade 4 Pulleys Review

What does this image represent?

What are two types of pulleys?

Pulleys make work:

A pulley is an example of a:

Identify the type of pulley

Identify the type of pulley

The diagram shows a movable pulley system. When moving a load, this pulley system changes the —

A load of 650 newtons is lifted with this pulley. What is the effort required to do this work?

Which of the following is an example of a pulley?

In which situation will the pulley reduce the force needed to lift the load?

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