Lab: Newton's Laws of Motion questions with correct answers

Lab: Newton's Laws of Motion


n this experiment, you will use a track, a toy car, and some washers to explore Newton's
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first two laws of motion. You will make observations and collect data regarding the
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motion of these objects. In the space below, write a general scientific question that you
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will answer by doing this experiment. - answer-Answer: ✔ When we run on a track or we
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run this car on the track, we need an external force to run the car and we again need an
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external force to stop that car. This verifies the law of inertia that a body do not want to
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change its mode.
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And we will also verify that the amount of force applied on the body is directly
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proportional to the mass of the body and its acceleration.
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Write a hypothesis for Part I of the lab, which is about the effect on an object being
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carried by a car, when the car experiences a sudden impact. Use the format of "if . . .
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then . . . because . . . " and be sure to answer the lesson question "How can Newton's
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laws be experimentally verified?" specific to Newton's first law. - answer-Answer: ✔ If an
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object is in motion, then the object will stay in motion because the object has inertia
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Write a hypothesis for Part II of the lab, which is about the relationship described by F =
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cma. In the lab, you will use a toy car and apply forces to it. Use the format of "if . . . then .
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c. . because . . ." and be sure to answer the lesson question "How can Newton's laws be
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cexperimentally verified?" specific to Newton's second law. - answer-Answer: ✔ If you c c c c c c c c c c c


cincrease the mass m of the car, the force F will increase, while acceleration a is kept
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cconstant. Because F and m are directly proportional. c c c c c c c


If you increase the acceleration a of the car, the force F will increase, while mass m is
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ckept constant. Because F and a are directly proportional.
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The variables for Part I of this experiment include whether or not the car hits the barrier
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and the distance that the washers travel. Use the drop-down menus to identify the
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independent and dependent variables.
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The independent variable, the one that is intentionally manipulated, is
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The dependent variable, the one that you measure the response in, is - answer-Answer:
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✔ an encounter with the barrier
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✔ The Distance Traveled by the washer
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From point A to point B, the car will
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From point B to point C, the car will
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, Assuming the washer on the car is not blocked by the book, once the car hits the book,
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the washer will still have
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This experimental design will examine Newton's_______ law. - answer-Answer: ✔
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Accelerate
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✔ Have constant Velocity
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✔ Velocity
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✔ First
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The variables for Part II of this experiment include the force applied to the car and the
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acceleration of the car. Use the drop-down menus to complete the sentences and
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identify the independent and dependent variables.
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The independent variable, the one that is intentionally manipulated, is
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The dependent variable, the one that you measure the response in, is - answer-Answer:
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✔ The Force Applied to the car
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✔ The Acceleration of the car
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The normal force acting upon the car is best represented by arrow
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The force of gravity acting upon the washers is best represented by arrow
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The applied force on the car is best represented by arrow - answer-Answer: ✔ A
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✔D c


✔C c




The acceleration of the car with two washers added to the string would be - answer-
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Answer: ✔ 0.33 c c




Which statements are part of the safety protocol for this lab experiment? Check all that
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apply. - answer-Answer: ✔ Always wear safety goggles when performing an
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experiment.
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✔ Use caution when releasing the cars, being careful not add additional force.
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✔ Ensure that the track has enough room and will not interfere with others in your class.
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✔ Report all accidents to the teacher.
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Calculate the average distances the car and the washer traveled from the top of the
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track. Record the average in Table A of your Student Guide. - answer-Answer: ✔ 247
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cm
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✔ 247 cm
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Calculate the average distances the car and the washer traveled from the top of the
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track. Record the averages and your qualitative observations in Table B of your Student
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Guide. Record what happened to the washer after the car hit the textbook. Explain
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whether the washer did the same thing every time.
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