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