Lava Lamp Heat Transfer Concepts

Lava Lamp Heat Transfer Concepts

Assessment

Interactive Video

Created by

Emma Peterson

Physics, Science

5th - 8th Grade

Hard

The video tutorial explains how a lava lamp works, focusing on the concept of convection currents. The teacher demonstrates how the heat from a lamp causes the wax-like material inside the lava lamp to rise and fall due to changes in density. This process is explained as a convection current, where heated material becomes less dense and rises, then cools, becomes denser, and sinks. The video includes a detailed observation of this process and emphasizes the importance of understanding convection currents for the lab assessment.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do people typically get lava lamps?

For their heating capabilities

For their decorative appeal

For scientific experiments

For lighting purposes

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the highest temperature reading mentioned for the lava lamp?

120 degrees

110 degrees

100 degrees

130 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the wax material as it heats up?

It changes color

It becomes less dense and rises

It evaporates

It becomes more dense and sinks

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the process of the wax heating up, rising, cooling down, and sinking?

Conduction

Radiation

Thermal expansion

Convection current

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes the wax to separate and sometimes not separate in the lava lamp?

The size of the globular

The room temperature

The color of the wax

The type of light source

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the wax when it moves away from the heat source?

It becomes lighter and rises

It evaporates

It cools down and sinks

It changes color

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main appeal of lava lamps according to the video?

They are used for lighting

They are used for heating

They are unpredictable and different each time

They provide consistent patterns

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of heat transfer is demonstrated in the lava lamp?

Conduction

Thermal expansion

Convection current

Radiation

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should students remember for the lab assessment?

The size of the globular

The temperature of the lamp

The color of the wax

The term 'convection current'

10.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will the lab assessment include?

This video

A practical demonstration

A group discussion

A written test

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