Science

1.) Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and then back to the post office. Which statement must be true about the two postal delivery workers? (1 point)
• They each travel a distance of 0 miles.
• They travel the same distance.
• They each have a displacement of 0 miles.
• They have the same velocity.

2.) Matt is walking at 1.25 miles per hour to the east. Jaime is walking at 1.25 miles per hour to the south. Which statement describes the movement of Matt and Jaime? (1 point)
• They have different speeds and different velocities.
• They have the same speed and the same velocity.
• They have different speeds but the same velocity.
• They have the same speed but different velocities.

3.) What does a horizontal line on a position-time graph indicate about the object? (1 point)
• The object is accelerating.
• The object remains still.
• The object has a position of zero.
• The object has a constant, nonzero velocity.

4.) A force acts on an object. Which option describes an action that could prevent the object from moving? (1 point)
•a force applied in the opposite direction with a greater magnitude at the same time
•a force applied in the opposite direction with the same magnitude at the same time
•a force applied in the same direction with the same magnitude at the same time
•a force applied in the same direction with a greater magnitude at the same time

5.) Which option is the force with the greatest magnitude? (1 point)
* the force needed to lift a chair
* the force needed to lift a textbook
* the force needed to lift a pencil
*the force needed to lift a hairbrush

6.)A box is against a wall. A person pushes on the box, but the box does not move. Is this situation an example of a force?(1 point)
*Yes, this is an example of a force because gravity is pulling the box down.
*No, this is not an example of a force because the box did not move.
*No, this is not an example of a force because a force pulls an object.
*Yes, this is an example of a force because a force is a push or pull.

7.)Which situation describes a non-contact force changing the speed of an object?(1 point)
*a ball accelerating as it rolls down a hill
*a drawer opening when a user pulls the handle
*a bicycle accelerating as the rider pedals more quickly
*a gust of wind blowing a leaf away

8.)In which situation would the momentum of a moving object increase?(1 point)
*force acting in the direction of the object’s motion is removed from the object.
*Two forces of equal magnitude act on the object in opposite directions.
*A force acting in the direction opposite the object’s motion is removed from the object.
*A new force acts on the object, opposing the object’s motion.

9.)When you trip, your foot stops, but your body continues to move forward. Which statement best explains why this happens?(1 point)
*The unbalanced force that stops your foot pulls your body forward.
*The unbalanced force that stops your foot does not act on the rest of your body.
*Inertia pushes your body forward after your foot stops.
*An unbalanced force pushes your body forward.

10.)A bowler throws a ball down the lane toward the pins. The ball reaches the pins and slowly moves through them, knocking down the center pins but leaving the end pins standing. The bowler wants the ball to reach all the pins. Which changes should the bowler make so that the ball has a greater acceleration?(1 point)
*The bowler should choose a ball with less mass or throw the ball with less force.
*The bowler should choose a ball with less mass or throw the ball with more force.
*The bowler should choose a ball with more mass or throw the ball with less force.
*The bowler should choose a ball with more mass or throw the ball with more force.

11.)In which situation does the reactive force between two colliding objects cause a physical change?(1 point)
*two bumper cars at an amusement park colliding, causing both cars to change direction
*a baseball player swinging a bat and hitting a baseball, causing the bat to shatter
*the exhaust from a rocket thrusting the rocket away from the ground
*a swing hitting another swing, causing the second swing to move away

12.)A sledgehammer hits a wall. How do the hammer and the wall act on each other?(1 point)
*The hammer exerts a stronger force than the wall but in the same direction.
*The hammer exerts a stronger force than the wall but in the opposite direction.
*The hammer and the wall exert forces on each other that are equal in magnitude and in the same direction.
*The hammer and the wall exert forces on each other that are equal in magnitude but in opposite directions.

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  1. My answers
    1.They each travel a distance of 0 miles.
    2.They have the same speed but different velocities.
    3.The object remains still.
    4.a force applied in the opposite direction with the same magnitude at the same time
    5.the force needed to lift a chair
    6.No, this is not an example of a force because the box did not move.
    7.a ball accelerating as it rolls down a hill
    8.A force acting in the direction opposite the object’s motion is removed from the object.
    9.An unbalanced force pushes your body forward.
    10.The bowler should choose a ball with less mass or throw the ball with more force.
    11.two bumper cars at an amusement park colliding, causing both cars to change direction
    12.The hammer and the wall exert forces on each other that are equal in magnitude but in opposite directions.

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  2. do you have answers i need heklp too

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  3. is bells answers correct please tell me

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  4. are they?

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  5. PLEASE TELL ME IF THEIR CORRECT I NEED THEM TODAYYY!!!!

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  6. mannn rip you, ill take the test real quick and give you the answers.

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  7. im STRUGGLING with the last question: A musician hits a drum with a drumstick. In three to four sentences, explain the collision forces between the drum and drumstick.

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  8. Anyone got the answers?????

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  9. when you get the answers to tell us please

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  10. Help! Please with the test answers

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  11. so anyone got da answers

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  12. no

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  13. Bell is wrong.

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  14. IS SHE CORRECT?

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  15. im happy to see people struggling this far behind like me :)

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  16. ill take one for da team

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  17. are they right chick'fil'a

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  18. What are the answers? I really need them I need to finish this today

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  19. not all

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  20. for connexus
    1.They each travel a distance of 0 miles.
    2.They have the same speed but different velocities.
    3.He is going faster and in a different direction during the first 10 minutes than in the last 10 minutes.
    4.The object remains still.
    5.a force applied in the opposite direction with the same magnitude at the same time
    6.the force needed to lift a chair
    7.Yes, this is an example of a force because a force is a push or pull.
    8.a ball accelerating as it rolls down a hill
    9.A force acting in the direction opposite the object’s motion is removed from the object.
    10.The unbalanced force that stops your foot does not act on the rest of your body.
    11.The bowler should choose a ball with less mass or throw the ball with more force.
    12.a baseball player swinging a bat and hitting a baseball, causing the bat to shatter
    13.The hammer and the wall exert forces on each other that are equal in magnitude but in opposite directions.
    these all right :>

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  21. i did for one person lol cuz all others done .-.

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  22. NOW U ALL GET 100%
    if u Connexus

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  23. hope u didn't do Mr. .-.

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  24. imma guess u did :/

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  25. chick fila is 100% correct everyone.

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