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If a car is moving in a circle on a track, the direction of the acceleration is

If a car is moving in a circle on a track, the direction of the acceleration is . Backward on the track . Forward on the track. Toward the center of the track. No acceleration the speed is constant. If you are going around the curve on a road, the centripetal force comes from.

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If a car is moving in a circle on a track, the direction of the acceleration is

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  1. If a car is moving in a circle on a track, the direction of the acceleration is Backward on the track Forward on the track Toward the center of the track No acceleration the speed is constant

  2. If you are going around the curve on a road, the centripetal force comes from Speed of the car Friction from road on tires Size of tires No force needed

  3. How do speed/velocity and the acceleration compare in circular motion? Point the same direction Point in opposite directions No acceleration Perpendicular to each other.

  4. If a can on a string is moving in a circle and the string is cut, what happens to the can? Moves in straight line from the point it is cut Moves in a straight line from the center of the circle Moves in a straight line and radius get larger Moves in a straight line away from the center of the circle.

  5. If two masses are close to each other and there is a force, what happens when you triple both masses? Force goes up by 3 Force goes down by 3 Force goes up by 9 Force goes down by 9

  6. There is a force between masses. What happens to the force, when the distance is 2/3 of what it was. Force decreases by 2/3 Force increases by 2/3 Force decreases by 4/9 Force increases by 9/4

  7. How does force change if both masses are doubled and the distance is tripled? Force decreases by 4/9 Force increases by 4/9 Force decreases by 4/3 Force increases by 4/3

  8. Double the masses and change the distance by 1/3. How does the force change? Force increases by 36 Force decreases by 4/3 Force increases by 12 Force decreases by 4/3

  9. Astronauts in space do not weigh anything True False

  10. There is no gravity in the space station True False

  11. Orbiting astronauts are not accelerating True False

  12. The value of G is a very large number and it explains why the force of gravity between the sun and earth is large. true false

  13. The G in Newton’s law of gravitation stands for gravity The acceleration due to gravity The gravitational constant

  14. Orbiting astronauts do not have weight in space because There is no gravity in space There is no air resistance in space They do have weight in space There are no scales in space

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