Forces Test Review 1. Inertia can be best described as the (A) force that keeps an object in motion with constant velocity (B) force that keeps an object at rest (C) force that overcomes friction (D) property responsible for an object's resistance to changes in motion (E) property responsible for slowing down an object 2. A box is given a sudden push up a ramp. Friction between the box and the ramp is not negligible. Which of the following diagrams best represents the directions of the actual forces acting on the box as it moves upward after the push?
Sergio Marin 8.06 Module eight activity Step 1 Calculations: 1. The main tank has a radius of 70 feet. What is the volume of the quarter-sphered sized tank? Round your answer to the nearest whole number. You must explain your answer using words, and you must show all work and calculations to receive credit.
mass = _____S_______________ 3. speed = ______S______________ 4. displacement = __V___________ 5. length = ____S_______________ Objective Four: Make and interpret position-time graphs that are equivalent representations that diagram an object’s uniform motion. Directions: Answer the following questions in the space provided. 1.) The graph to the right shows the distance versus time for two cars traveling on a straight highway. a.
What pressure is required to reduce the volume of gases in a car’s cylinder from 48 cm3 at V1 102 kPa to 5.2 cm3? V2 P1 (Boyle’s) P1V1 = P2V2 P2 = P1V1/V2 P2 = (102 kPa)(48cm3)/(5.2cm3) P2 = 940 kPa (Boyle’s) P1V1 = P2V2 V2 = P1V1 / P2 V2 = (290.kPa)(18.9mL)/(104kPa) V2 = 52.7mL Divers must exhale or else the gas in their lungs will expand so much that his lungs could rupture. 5. , V1 P1 6. A gas sample has volume 3.00 dm3 at 101 kPa. What will be the volume if the pressure is reduced to 14.2 kPa?
b) Use your function to determine the gas mileage if the car is driven at a speed of 50 mph. Answer in a sentence. 5. Perform the indicated operation. Simplify your answer as much as possible.
Explain the problem(s) associated with the labor productivity. Quantity $/Unit Deluxe car 4,000 units sold $8,000/car Limited car 6,000 units sold $9,500/car Labor. Deluxe 20,000 hours $12/hour Labor. Limited 30,000 hours $14/hour Solution: Firstly, we use the single-factor productivity for measuring productivity as explained below: The labor productivity (in hours) for Deluxe car: Units sold = 4,000 = 0.2 units per labor hour. Labor hours 20,000 The labor productivity (in hours) for Limited car: Units sold = 6,000 = 0.2 units per labor hour.
In this experiment we studied the motion of a vibrating spring. For the first part of the experiment we hooked a 50 g mass holder to the spring and recorded the total mass on the spring as the reference point 〖 M〗_0. The reference or equilibrium position, x_0, of the spring was then observed and measured to be 21.2 cm. The mass load was then increased by 10 g until the total mass load was 110g. I found that as the mass load was increased the displacement from the reference position increased.
Newton’s Second Law Lab Purpose: The purpose of this experiment was to determine the relationships between mass, force and acceleration as well as to prove Newton’s second law Hypothesis: It was hypothesized that there would be an inverse relationship between acceleration and mass; as the value of the mass increased the acceleration decreased. As well it is hypothesized that there would be a direct relationship between the net force and acceleration; as the net force increases the acceleration increases as well. Materials & Method: The materials that were required to do the experiment were a metre stick; its purpose was to measure the amount of string that is going to be used to drag the cart. Next equipment needed for the lab was a dynamic cart; it was going to be dragged by the string with a mass on the other end and will find relationships between these two. Also string (about 75cm) was needed in this experiment which would help pull the cart with the help of the masses that were used.
Lab 7: “Newton’s Second Law” Newton’s Second Law Purpose: To find the graphical and mathematical relationship between the Net forces applied to an object, its mass and acceleration. Variables: Independent: -Hanging mass Dependent: -Acceleration -Force pulling on cart Materials: * * Dynamic Cart with pegs * Force Sensor * Motion Detector * Computer with Logger Pro * Lab Pro * Ramp with Pulley * Mass Sets * String Procedure: 1. Assemble the Ramp and pulley system as shown. Attach proper length of String to the Force Sensor, and add a loop at the opposite end for attachment of various weights. 2.
Because ‘F’ and ‘x’ are directly proportional, a graph of ‘F’ vs ‘x’ is a line with slope ‘k’ A mass on a spring is a simple harmonic oscillator which is an object that oscillates the equilibrium point and experiences a restoring force proportional to the object’s displacement. The time it takes for a spring to complete an oscillation is called the period of oscillation, ‘T’. The period of oscillation of a simple harmonic oscillator that is described by Hooke’s Law is: T=2π√(m/k). This formula shows that as the mass, ‘m’, increases and the spring