Science Class 5 Other

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

When you turn a key in a lock, which simple machine are you primarily using?

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Answer: C. Wheel and axle

The head of the key acts as the Wheel, and the thin part that goes into the lock acts as the Axle. A small turn of the wheel creates a powerful force on the axle.

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