Question

B. Fill in the blanks.
1. A ______ is a rod that turns around a fixed point. (polly,lever)
2. In a crowbar, the effort arm is ______ ( shorter,longer)
than the load arm.
3. A lemon squeezer is an example of a class _______
lever.( I,II)
4. A class ______
lever always multiplies the force.(I,II)
5. The mechanical advantage of class III levers is always _______ than 1. (greater,less)​

Answer 1

Answer:

1 lever

2 shorter

3 I

4 II

5 greater

Answer 2

Answer:

1. Lever

2. Longer

3. I class lever

4. II class lever

5. Less

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