I WONDER - How Can I Reduce Friction?

I WONDER - How Can I Reduce Friction?

Assessment

Interactive Video

Engineering

KG - 6th Grade

Hard

Created by

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The video tutorial explains that when machines malfunction, it is often due to excessive friction between moving parts. To address this issue, oil is commonly used as it helps to decrease friction, allowing the parts to move smoothly again.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common issue that occurs when machines start to malfunction?

Software glitches

Excessive heat generation

Electrical failure

Strong friction between moving parts

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is often used to help moving parts in machines work smoothly again?

Water

Grease

Oil

Air

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does oil help in the functioning of machines?

By increasing the speed of parts

By cooling down the machine

By decreasing friction

By cleaning the parts

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a benefit of using oil in machines?

Reducing friction

Increasing friction

Preventing rust

Improving efficiency

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of using oil in machines?

To increase the weight of the machine

To decrease the friction between moving parts

To enhance the color of the machine

To make the machine sound quieter