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Forces in Fluid Quiz for 8th Grade Science by Mr. Lewis - Snowshoes, Pressure, and More

Learn about forces in fluid and pressure with this quiz designed by Mr. Lewis for 8th-grade science students. Explore concepts like snowshoes, Pascal's principle, and Bernoulli's principle.

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Forces in Fluid Quiz for 8th Grade Science by Mr. Lewis - Snowshoes, Pressure, and More

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  1. Forces in Fluid Quiz Mr. Lewis’s 8th Grade Science

  2. Snowshoes enable a person to walk on deep snow because the snowshoes… • Decrease the person’s weight on the snow. • Increase the area over which the person’s weight is distributed • Increase the pressure on the snow • Increase the buoyancy of the person

  3. A unit of pressure is called a … • Bernoulli • Pascal • Pound • meter

  4. Air pressure exerted equally on an object from different directions is … • Balanced pressure • Gravitational pressure • Fluid pressure • Constant pressure

  5. Given that the air pressure outside your body is so great, why aren’t you crushed? • Human skin is extremely strong. • Earth’s gravity cancels out air pressure • Pressure inside your body balances the air pressure outside your body. • Inertia changes the pressure before it comes into contact with you.

  6. Air pressure decreases as… • Velocity increases • Elevation increases • Acceleration decreases • Gravity increases

  7. Water pressure increases as… • Depth increases • Gravity increases • Force decreases • Acceleration increases

  8. Which type of substance does Pascal’s principle deal with? • Solids • Fluids • Powders • Metals

  9. One application of Pascal’s principle is… • A hydraulic car lift • The flight of an airplane • A speedboat’s bottom slapping against the waves. • The buoyancy shown by ducks and other waterfowl

  10. What scientific rule describes why water squirts from a plastic bottle when squeezed? • Bernoulli’s principle • Archimedes’ principle • Pascal’s principle • Newton’s first law of motion

  11. what does a hydraulic system do? • Decrease pressure • Increase velocity • Multiply force • Reduce inertia

  12. Answers • B • B • A • C • B • A • B • A • C • C

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