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8th Grade Ch.2 pretest
供稿人: Howard
  • 1. Which of the following is TRUE?
A) All objects move in the same direction.
B) Most objects move at the same speed.
C) Pushing on an object will change how it moves.
D) Pulling an object in motion will not affect its motion.
  • 2. The motion of an object changes when you change
A) either its speed or its direction
B) its direction only
C) its speed only
D) neither its speed nor its direction
  • 3. Which units can be used to measure distance?
A) seconds
B) cubic centimeters
C) meters
D) liters
  • 4. Which units can be used to measure time?
A) milligrams
B) liters
C) meters
D) seconds
  • 5. Hitting a ball can change its
A) speed and mass
B) mass and size
C) size and direction
D) speed and direction
  • 6. A ball moves 5 meters in 10 seconds. What does this information tell you about the motion of the ball?
A) direction and size
B) speed and weight
C) force and direction
D) distance and time
  • 7. Simplified, the fraction 15/5 equals
A) 65
B) 1/3
C) 5
D) 3
  • 8. Simplified, the fraction 10/15 equals
A) 1.5
B) 1/3
C) 2/3
D) 3
  • 9. Which statement about a line graph is TRUE?
A) The x-axis is vertical and the y-axis is horizontal.
B) The intervals on the x-axis are usually different sizes in the same graph.
C) The y-axis is vertical and the x-axis is horizontal
D) The scale of both axes must begin at zero.
  • 10. If you push or pull a moving object,
A) its velocity will remain the same
B) its mass will change
C) its motion will change
D) it will not accelerate
  • 11. Which of the following is an example of horizontal movement?
A) a ball that is still
B) a ball thrown straight up into the air
C) a ball spinning in place
D) a ball rolling on a flat table
  • 12. Which of the following is an example of vertical movement?
A) a person jumping straight up and down
B) a person turning in circles
C) a person walking on a sidewalk
D) a person standing on one foot
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