Understanding Simple Machines: Levers

What is the primary function of simple machines?

• To complicate tasks

• To measure weight accurately

• To make work easier

• To increase the weight of objects

What does the spring scale measure up to in grams?

• 500 grams

• 1000 grams

• 1500 grams

• 2000 grams

According to the video, what is the primary benefit of using simple machines?

• To perform tasks more quickly

• To increase the complexity of tasks

• To reduce the effort needed to perform tasks

• To measure different forces

What is the pivot point of a lever called?

• Fulcrum

• Base

• Support

• Axis

How much did the spring scale read when the weight was at the end of the lever?

• 350 grams

• 500 grams

• 900 grams

• 1000 grams

What role does the fulcrum play in a lever?

• It measures the weight

• It holds the weight

• It moves the lever

• It supports and allows the lever to pivot

What was the reading of the spring scale when the weight was moved to the middle of the lever?

• 350 grams

• 500 grams

• 900 grams

• 1000 grams

What happens to the perceived weight as the actual weight is moved closer to the pivot point?

• It increases

• It decreases

• It stays the same

• It doubles

What is the effect of moving the weight further down the lever?

• Makes the lever break

• Increases the effort needed

• Has no effect on the effort

• Decreases the effort needed

What simple machine is a wheelbarrow compared to in the demonstration?

• Pulley

• Screw

• Lever

• Wedge