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# Types of Pulleys (Grade 4)

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## Types of Pulleys

1.
What type of pulley is shown?
1. fixed pulley
2. movable pulley
3. block and tackle
2.
What type of pulley is shown?
1. fixed pulley
2. movable pulley
3. block and tackle
3.
What type of pulley is shown?
1. fixed pulley
2. movable pulley
3. block and tackle
4.
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
1. It would take 0 kg of effort to lift the bucket.
2. It would take 2.5 kg of effort to lift the bucket.
3. It would take 5 kg of effort to lift the bucket.
4. It would take 10 kg of effort to lift the bucket.
5.
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
1. It would take 0 kg of effort to lift the bucket.
2. It would take 2.5 kg of effort to lift the bucket.
3. It would take 5 kg of effort to lift the bucket.
4. It would take 10 kg of effort to lift the bucket.
6.
Look at the image of the pulley. If bucket A has a mass of 5 kg, which of the following statements is true about the minimum effort force required to lift the bucket if friction is ignored?
1. It would take 0 kg of effort to lift the bucket.
2. It would take 2.5 kg of effort to lift the bucket.
3. It would take 5 kg of effort to lift the bucket.
4. It would take 10 kg of effort to lift the bucket.
7.
If friction is ignored, which pulley requires more effort force to lift the bucket?

A
B
1. Pulley A
2. Pulley B
3. Pulley A and B will require the same effort
8.
Crystal must lift a bucket of water 1 meter off the ground. She may lift the bucket herself or use the pulley system shown. Which will require less effort to lift the bucket?
1. Crystal lifting the bucket on her own would require less effort.
2. Crystal using the pulley system to lift the bucket would require less effort.
3. Crystal must use the same effort if she lifts the bucket or uses the pulley system.
9.
Which is true about the amount of work that must be done to lift a bucket using the pulley shown compared to lifting the same bucket without a pulley?
1. Less work is done when lifting with the pulley.
2. Less work is done when lifting without the pulley.
3. The same amount of work is done lifting with or without the pulley.
10.
A pulley and first class lever are shown.
Pulley

First Class Lever

Which statement best describes the relationship between the pulley and first class lever?
1. The pulley is similar to the first class lever because it has a fulcrum between the load and effort force.
2. The pulley is similar to the first class lever because it has an effort force between a fulcrum and load.
3. The pulley is similar to the first class lever because it has load between a fulcrum and effort force.
4. There are no similarities between the pulley and first class lever.
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