A winding road or ghat is an example of lever of first order.
Question types
Simple Machines question types
71 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
71
Questions
7
Question groups
5
Question types
01
Write True or False
7 Q→02Answer the following questions:[1 M]
35 Q→03Fill in the blanks
16 Q→04Give scientific reasons: [2 M]
6 Q→05Match the following.
2 Q→06Answer the following questions: [2 M]
4 Q→07Do as instructed
1 Q→Sample Questions
Simple Machines questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
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A slanting plank is used to lift a weight.
In Archimedes screw, the rod rests on flat surface.
Screw is an example of wedge.
In pulley, force can be applied in upward direction.
If the point of a needle or the edge of a knife become blunt, then the needle does not penetrate the cloth and the knife does not cut into the fruit. Why is this so?
Compare the pathway and a road, available to climb the mountain, the time and strength and your convenience, required to reach the mountain top.
Observe the machines shown in the following pictures. For what purposes are they used? Can you name some other machines of this kind?
How does a pulley help us?
What is a pulley?
In Archimedes’ screw, the pipe was placed at an angle of …………. with one end inside the …………. and the rod resting on a …………. .
Machines are covered when not in use to prevent …………. settling on them.
A needle and a nail are also kind of …………. .
Combination of an axle and a wheel is a …………. machine.
When we use a pulley, force is applied in the downward direction for lifting the weight in an …………. direction.
How are machines protected from the effect of weather?
Machines are covered when not in use.
Oil or lubricant is released between parts of machine.
Big vehicles easily climb up and down the mountains than a pathway.
Less force is required to fit a screw than to hammer a nail.
| Column ‘A’ | Column ‘B’ |
| 1. Inclined plane | a. Needle |
| 2. Pulley | b. Screw |
| 3. Wedge | c. Crane |
| Column ‘A’ | Column ‘B’ |
| 1. Pair of Scissors | a. Third order of lever |
| 2. Tongs | b. Second order of lever |
| 3. Opener | c. First order of lever |
Explain the working of a giant wheel.
What is an inclined plane? Explain longer and shorter inclined plane.
How can machines be maintained?
With the help of the diagram explain lever of the 1st, 2nd, 3rd order.
Classify the following as a lever, a pulley and an inclined plane:
(A wedge, a needle, a staircase, a slide, the wheel of a flagpole, nutcrackers, scissors, an opener, an axe, a crane, a knife)
(A wedge, a needle, a staircase, a slide, the wheel of a flagpole, nutcrackers, scissors, an opener, an axe, a crane, a knife)
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