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