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