Answers for nurse physics PDF

Title Answers for nurse physics
Author Jay Odinet
Course Pharmacology
Institution Chamberlain University
Pages 8
File Size 208.8 KB
File Type PDF
Total Downloads 90
Total Views 143

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Question 1 Which is/are not a commonly used system of measurement in science and medicine, around the world? [Select all that apply] Metric System SI System British SystemCorrect! French System In medicine and science, the Metric and SI system are used as units of measurement around the world, varying between the two, depending on location. The British and French system are not applicable.

Question 2 What is a basic unit of measurement commonly used in medicine? Gram Foot Inches Pound The foot, inches and pound are all English units of measurement. In medicine, the gram is used.

Question 3 What are the common fundamental units of measurement in the SI system? [Select all that apply]Correct! Length Mass TimeYou Answered Volume Length, mass, and time are all SI units of measurement. Volume is part of the metric system

Question 4 What is defined as “the quantity of material an object contains”? Volume LengthCorrect! Mass Weight Mass is defined as the quantity of material and object contains. It is neither created nor destroyed. Volume is the amount of space an object occupies; weight is how much the object weights; length measure how long the object is from end-to-end.

Question 5 What is the metric unit of volume?

Ounces PoundsCorrect! Liter Gram The metric unit of volume is a liter. Ounces is the SI unit of measurement and can also measure weight. Pounds and gram, measure weight and mass, respectively, not volume.

Question 6 How many centimeters are in an inch? 2.41 3.75 3.23orrect! 2.54 There are 2.54 centimeters in an inch.

Question 7 What instrument is used to measure thickness of an object, such a waist? Scaleorrect! Calipers Beaker Ruler Calipers are used to measure object thickness, such as skin. A scale measures weight and/or mass. A beaker is used to measure volume. A ruler is used to measure length.

Question 8 What is described as “the study of the fundamental laws of nature that underlie all physical phenomena in the universe”? Medicine Biology Mathorrect! Physics Physics is the study of the fundamental laws of nature that underlie all physical phenomena in the universe. Medicine is the study of health and disease. Biology is the study of life and living organisms, including their structure, function, growth, and evolution. Math is the study of numbers, structures, and space.

Question 9 1 / 1 pts In quantitative measure, it is important to include what with the number/value of measurement?orrect!

The Unit of Measurement The Definition of Measurement The Time of Measurement The Location of measurement When listing measures, it is important to include a unit. This defines what is being measured, such as volume, mass, etc.

Question 10 Which of the following is not a unit of temperature? KelvinCorrect! Ounce Celsius Fahrenheit Kelvin, Celsius, and Fahrenheit are all units of temperature. Ounce is a unit of weight and/or volume

Question 1 Physics helps individuals understand: Measurementorrect! How things move and interact Time and Space Temperature Physics is the study of how things interact and their motions/forces. Performance of everyday activities depends on the forces and the impact on the object/individual. The study of time and space is quantum mechanics. The student of measurements is metrology.

Question 2 If an individual throws an object onto a steep road, resistance will adjust the speed of the object. This is known as: Volumeorrect! Friction Weight Path Pattern Friction is the force that one surface exerts on another due to the roughness of the surface. In this case, the steep road acts as friction to change the speed of the object. The roughness of the road changes the friction, which changes the object’s speed.

Question 3 Imagine you are driving down the road, and all of a sudden, an object appears in the road. To avoid hitting the object, you press the breaks on the car. This applies a force,

the velocity decreases, and the car stops. This activity of velocity change is known as what? Newton’s Third Law Newton’s Fourth Laworrect! Newton’s Second Law Newton’s First Law Newton’s Second Law is the Law of Acceleration. It states that when a force acts on a body, the body accelerates or changes velocity. In addition, a force can act on a body to slow the velocity or acceleration. When, the break is pressed this changes the acceleration of the vehicle (the object).

Question 4 1 / 1 pts A person swinging a baseball bat during a game acts a vector causing an object (the baseball) to move or change it’s motion. This is an example of what?orrect! A force A change A gravitational pull A resistance A force is an example of a vector quantity, which has magnitude and direction. This vector quantity causes an object to move or change their motion. In this case, the baseball bat acts as force to change the baseball’s direction or speed.

Question 5 Which of the following is an example of a lever? [Select all that apply] Stapler Tweezers Nut Cracker Mousetrap A lever is a bar or rod arranged to permit rotation about an axis (fulcrum). Levers can enable an object to be moved over long distances with minimal effort. All of the choices are considered levers.

Question 6 Machines are common in modern healthcare. For instance, consider a patient requiring a wheelchair and needing to use a ramp to enter a building. The ramp can act a simple machine and must be constructed to allow for ease of use and movement. This ease of use and movement provides what? Working advantage Physics advantage Motion advantageorrect! Mechanical advantage

Machines are devices designed to specifically make work easier and more efficient. This can be done by changing direction of the force, position of the force, and/or transformation of the force. Changing this force to make it easier is known as the mechanical advantage. A wheelchair ramp is an incline plane machine and provides a mechanical advantage with movement in a wheelchair.

Question 7 A wheelchair ramp length is 20 ft; the ramp height is 5 ft; and the effort to push the chair is 40 lbs. Using the mechanical advantage formula, what is the person’s weight? You Answered 230 lbs 160 lbs 180 lbs 300 lbs The equation for the mechanical advantage is the effort multiplied by the ramp length should equal the weight of the person multiplied by the height of the ramp (effort x ramp length= persons weight x ramp height). For this scenario, the equation would be effort (40 lbs) x ramp length (20 ft) = persons weight (x) x ramp height (5ft). Solving for x, the persons weight is 160 lbs.

Question 8 A quantity that has only magnitude (size) but no direction such as mass is known as: Vectororrect! Scalar Angular BMI A Quantity with magnitude but no direction is defined as scalar quantity.

Question 9 BMI is calculated using what individual measurements? Weight and Mass Height and Massrrect! Height and Weight Weight and Volume BMI is calculated using a person’s height and weight.

Question 10 If the force of an object remains the same, but the mass of the object decreases to half, the acceleration of the cart:

Does not change Changes unpredictably Halvesou Answered Doubles This is an example of Newton’s Second Law. When you push a cart, it will start with a greater speed with first pushed, but the rate at which is gains speed, remains the same.

Question 1 1 / 1 pts Between water and sand, which takes longer to warm in sunlight and longer to cool at night? They cool and heat at the same rateCorrect! Water sand Sand heats and cools faster than water.

Question 2 1 / 1 pts Why would sand heat and cool faster than water? Sand has a higher specific heat capacity than water.orrect! Sand has a lower specific heat capacity than water. Water has a lower specific heat capacity than sand. Water has a higher specific heat capacity than sand. Sand has a lower specific heat capacity than water.

Question 3 1 / 1 pts Consider heating a beaker of water. If you want to add 5 calories of heat to 1 gram of water, how will the temperature change? It will increase to 1ᵒC. It will increase to 1ᵒC.Correct! It will increase to 5ᵒC. It will decrease to 5ᵒC. Heat calories are proportional to the temperature. So, if you add 5 calories of heat to 1 gram of water, you’ll raise the temperature of the glass by 5◦C.

Question 4

What happens to energy when you hold a cube of ice in your hand? Simultaneously, cold flows from the ice to your hand, and heat flows from your hand to the ice. Correct! Thermal energy flows from your hand to the ice Cold flows from ice to your hand. None of the above. When you hold the ice, thermal energy flows from you hand to the ice.

Question 5 When a liquid or gas is heated, it expands and becomes less dense. The less dense material then rises, while cooler, more dense material sinks to take its place. This is known as: Convection RadiationYou Answered Condensation Conduction This is the definition of convection.

Question 6 Let’s say you are drinking a hot cup of tea. The cup is full and acts as an insulator for the tea. In addition, you are using a spoon to stir your sugar. While in the glass, the spoon is acting as what? Condensor ConvectorCorrect! Conductor Radiator Conduction occurs when two substances are in contact with each other, and the heat energy is transferred directly. The mechanism which this is occurs is a conductor. The spoon is acting as a conductor from the hot tea to your hand.

Question 7 On a cold winter day, someone knocks on the door and you open it to see who it is. When the door opens, the house becomes cooler. How does this heat transfer occur? The warmer air from inside is not affected by the outside. The warmer air from inside is transferred outside.ou Answered The cooler air from outside is transferred inside. Heat is transferred from hotter materials to cooler materials.

Question 8 What is defined as “the change of state of matter directly from solid to gas, bypassing the liquid phase? Sedationorrect! Sublimation Subluxation Suxtation This is defined as sublimation.

Question 9 When an object is heated, how will its volume change? It will contract It will explodeorrect! It will expand It will dissolve When heated, objects expand

Question 10 Which of the following are changes in states of matter? [Select all that apply] Correct! Condensationorrect! Sublimation. Correct! Vaporization Melting These are all changes in states of matter....


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