Grade 8 Science - Fluid Dynamics Study Guide
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Questions and Answers

Which of the following is NOT a state of matter?

  • Solid
  • Energy (correct)
  • Liquid
  • Gas

Surface tension only occurs in solids.

False (B)

What are three factors that can affect the flow rate of a liquid in a pipe?

Diameter of the pipe, temperature, and pressure

The arrangement of particles in a ______ has the least energy and they are closely packed together.

<p>solid</p> Signup and view all the answers

Match the following types of flow with their characteristics:

<p>Laminar flow = Smooth and orderly flow Turbulent flow = Chaotic and irregular flow Streamlined = Designed to reduce drag Eddy = Circular movement of fluid</p> Signup and view all the answers

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Flashcards

Fluid

A substance that can flow and take the shape of its container. Examples include liquids and gases.

Viscosity

The resistance of a fluid to flow. Thick fluids have high viscosity, while thin fluids have low viscosity.

Flow rate

The rate at which a fluid moves through a given space. It's calculated by dividing the volume of fluid by the time it takes to flow.

Laminar flow

A smooth, steady flow of fluid where particles move in parallel lines. Think of water flowing slowly in a pipe.

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Turbulent flow

A flow of fluid where particles move in irregular, chaotic patterns. Think of rapids in a river.

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Study Notes

Grade 8 Science - Study Guide

  • Definitions:
    • Adhesion
    • Eddy
    • Flow rate
    • Fluid
    • Gas
    • Laminar flow
    • Liquid
    • Solid
    • Surface tension
    • Streamlined
    • Turbulent flow
    • Viscosity

Particle Theory of Matter

  • List the five main points of the Particle Theory of Matter.
  • Give four examples of fluids in homes (e.g., juice, milk, water).
  • Give three examples of fluids essential to life and explain how each is crucial.
    • Example: Blood, transports oxygen & nutrients, essential for life.
  • Explain why liquids take the shape of their container but don't fill it completely like gases.
  • Explain how temperature affects the flow rate of liquids and gases.

Factors Affecting Flow Rate

  • List three factors that affect the flow rate of liquids in a pipe.
  • Explain how flow rate relates to viscosity.
    • Viscosity is resistance to flow.

Particle Diagrams

  • Draw a particle diagram for a solid, a liquid, and a gas, including lines/arrows to show particle arrangement, relative movement, and attractive forces.

Flow Rate Calculations

  • Calculate flow rate given volume and time, using proper units.
  • Bonus: Convert mL/sec to L/min.

Laminar Flow Example

  • Provide an example of laminar flow.

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Grade 8 Science Study Guide PDF

Description

This quiz covers essential concepts in fluid dynamics, including definitions and the Particle Theory of Matter. It aims to enhance your understanding of flow rates, viscosity, and the behavior of different states of matter. Prepare to explore how these principles apply to both natural and everyday contexts!

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