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1. What kind of energy is stored in a compressed spring?

Week 18 Start on a new page after the page for your week 17 quiz. 1. What kind of energy is stored in a compressed spring? . Radiant Mechanical Kinetic Sound. 2. Which of these is a unit of acceleration? . m/s h k m m/s 2. 3. Which of these is not a form of potential energy? .

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1. What kind of energy is stored in a compressed spring?

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  1. Week 18 Start on a new page after the page for your week 17 quiz 1. What kind of energy is stored in a compressed spring? Radiant Mechanical Kinetic Sound

  2. 2. Which of these is a unit of acceleration? • m/s • h • km • m/s2

  3. 3. Which of these is not a form of potential energy? • Gravitational energy • Chemical energy • Light energy • Nuclear energy

  4. 4. A runner takes 1.5 hours to complete a 6.0-kilometer route. What is the jogger’s average speed? • 2.5 km/h • 4.0 km/h • 7.5 km/h • 9.0 km/h

  5. 5. In solids, heat transfer occurs by • Convection • Conduction • Radiation • Insulation

  6. 6. Which situation is an example of balanced forces? • A roller coaster accelerating down the track. • A car coming to a sudden stop. • A child bouncing up and down on a trampoline. • A flower pot sitting on a windowsill.

  7. 7. To calculate kinetic energy, you need to know • The object’s mass and height above the ground. • The object’s acceleration and height above the ground. • The object’s mass and velocity. • The object’s acceleration and velocity.

  8. 8. It takes 0.5 seconds (s) for a baseball to travel from the pitcher to the batter, who is 20 meters (m) away. What is the speed of the baseball? • 10 m/s • 25 s/m • 40 m/s • 100 s/m

  9. 9. An ice skater is moving in a straight line with constant speed. Which describes the forces acting on the skater? • The forces on the skater are unbalanced. • The forces on the skater are balanced. • There are no forces acting on the skater. • Only gravity is acting on the skater.

  10. 10. Which description of gravitational force is NOT true? • It depends on the mass of objects. • It is a repulsive force. • It depends on the distance between objects. • It exists between all objects.

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