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