PhET Online Lab, Newton's Laws of Motion Purpose: In this activity you will be investigating Newton's rst and second laws of motion. Introduction: You will be using one of the simulations from PhL'l' interactive Simulations. The simulation is titled Forces and Motion: Basics ll'l'MLl-'j. 'l'his simulation will run right in your computer 01' tablet we browser. ' ' ' ' Part I - Newton's First Law of Motion (1] Choose the Dilution window to start the simulation. Play around with the simulation for a few minutes to see how the different controls work. a) Choose an object and put it on the skateboard. Make sure the boxes that say Force, Values, Mass and Speed are checked. Do not do anything else to the simulation. Describe the motion of the obj set using physics terms [i.e. balanced, unbalanced, force, speed. 0 '0 n velocity, acceleration). Why does the object have this motion? h] Reset the simulation and check the hoses again. Apply a force of no N to the right. Describe the motion of the object using physics terms (i.e. balanced, unbalanced, force, speed, velocity, acceleration). Why does the object have this motion? (3) Reset the simulation and check the boxes again. Apply a force of 50 N to the right for about 5 seconds, then reduce the applied force to zero (the person should stop pushing). Describe the motion of the box after the person stops pushing using physics terms (i.e. balanced= unbalanced, force, speed, velocity, acceleration). Why does the object have this motion? (1) Reset the simulation and check the boxes again. Get the box moving to the right at a constant velocity. New make the box stop and then move it in the opposite direction. Explain how you stopped the box and made it move in the opposite direction using physics terms. (Le. balanced, unbalanced. force, speed, velocity, acceleration). Include a ser- (2) Summary of Putt 1 Newton's First Law of Motion states: \"An object at rest stays at rest and an object in motion stays in motion with the some speed and in the same direction unless acted upon by an unbalanced force.\" Explain how each of your observations in a) through d) supports this Law. a) b) d) (3] Determine the unknown mass of the present. Explain your procedure. Part II - Newton's Second Law of Motion Choose the Acceleration window. Check all the. boxes and set the friction to none. (1) In this section you will he investigating the relationship between the net force applied to an object and its acceleration. a) Choose an object. Using a stopwatch or the timer on your phone, measure the amount of time it takes for the object to reach maximum spe etl using a force of 50 N. Enter the time and the object's acceleration in the table below. Using the same ohj eet, do . this again with three different forces. You must recheck all the ' 009 I e re 1] O n boxes and set the friction to zero each time. Object and its mass: Applied Force (N) Time to Max. Speed (5] Acceleration (III/S\") Include a sari b) Based on the data in your table above, describe the relationship between the net force applied to an object and its acceleration. c) If you applied a force of 800 N to the object you selected above, how much time would it take to reach its maximum speed and what would be the acceleration of the object? Show your work. (2) In this section you will be investigating the relationship between the mass of an object and its acceleration. a) Reset the sim, check all the boxes again and set the friction to none. Choose an object. Set the applied force to 200 N to the right. For this section always use the same force of 200 N. Using a stopwatch or the timer on your phone, measure the amount of time it takes for the object to reach maximum speed. Einter the time and the object's acceleration in the table below. Repeat with three different objects. You must recheck all the boxes and set the friction to zero each time. Object & Mass (kg) Time to Max. Speed (s) Acceleration (m/$2) b) Based on the data in your table above, describe the relationship between the mass of an object and its acceleration. c) If you applied a force of 200 N to an object that has a mass of 800 kg, how much time would it. take to reach its maximum speed and what would be the acceleration of the object? Show your work