physics powerpoint review 1st
... T F 17. A bug on a turning record will make more turns per minute if it walks toward the center of the record. T F 18. Ladybugs on the inside of a spinning bicycle tire will experience a force that feels like gravity to them. T F 19. In order to increase his or her rotational inertia, a tightrope wa ...
... T F 17. A bug on a turning record will make more turns per minute if it walks toward the center of the record. T F 18. Ladybugs on the inside of a spinning bicycle tire will experience a force that feels like gravity to them. T F 19. In order to increase his or her rotational inertia, a tightrope wa ...
Summary of Chapters 1-3 Equations of motion for a uniformly acclerating object
... A force is a push or a pull acting on an object. A force is a vector! Contact forces arise from physical contact, and are due to stretching or compressing at the point of contact. Action-at-a-distance forces do not require contact and include gravity and electrical forces. ...
... A force is a push or a pull acting on an object. A force is a vector! Contact forces arise from physical contact, and are due to stretching or compressing at the point of contact. Action-at-a-distance forces do not require contact and include gravity and electrical forces. ...
Contact forces - Uplift Education
... Forces are usually divided into two types. 1. Contact forces occur because of physical contact between objects. Examples: pushing open a door pulling on a rope ...
... Forces are usually divided into two types. 1. Contact forces occur because of physical contact between objects. Examples: pushing open a door pulling on a rope ...
Chapter 6 – Force and Motion II
... introduced in Chapter 5, we emphasized that they are valid only for inertial frames of reference. In this section, we will analyze the noninertial frames, that is, one that is accelerating. Example: Let’s consider a hockey puck on a table in a moving train. The train moving with a constant velocity ...
... introduced in Chapter 5, we emphasized that they are valid only for inertial frames of reference. In this section, we will analyze the noninertial frames, that is, one that is accelerating. Example: Let’s consider a hockey puck on a table in a moving train. The train moving with a constant velocity ...
Concept Presentation
... equal in magnitude and opposite in direction back onto the first object. Which one do you think may cause misunderstanding ...
... equal in magnitude and opposite in direction back onto the first object. Which one do you think may cause misunderstanding ...
Chapter 3
... a. angular motion of the joints produces linear motion b. linear motion of the joints produces angular motion c. both of the above choices are correct d. none of the above choices are correct 12. Which of the following is Newton’s Law of Inertia? a. for every action there is an opposite and equal re ...
... a. angular motion of the joints produces linear motion b. linear motion of the joints produces angular motion c. both of the above choices are correct d. none of the above choices are correct 12. Which of the following is Newton’s Law of Inertia? a. for every action there is an opposite and equal re ...
Forces Reivew
... 4. One object has twice as much mass as another object. The first object also has twice as much ___. a) inertia d) acceleration b) velocity e) all of the answers are correct c) gravitational acceleration 5. Compared to its weight on earth, a 10-kg object on the moon will weigh ___. a) less. b) more. ...
... 4. One object has twice as much mass as another object. The first object also has twice as much ___. a) inertia d) acceleration b) velocity e) all of the answers are correct c) gravitational acceleration 5. Compared to its weight on earth, a 10-kg object on the moon will weigh ___. a) less. b) more. ...
Answers
... 4. Since the car continues in uniform circular motion, component nx must equal (zero) (mv2/r) and be a (centripetal) (centrifugal) (nonexistent) force. Furthermore, nx is (along the radius of) (tangent to) the circular path. Vector Resultant Analysis: 5. Rather than resolving n into horizontal and v ...
... 4. Since the car continues in uniform circular motion, component nx must equal (zero) (mv2/r) and be a (centripetal) (centrifugal) (nonexistent) force. Furthermore, nx is (along the radius of) (tangent to) the circular path. Vector Resultant Analysis: 5. Rather than resolving n into horizontal and v ...
Forces - QuarkPhysics.ca
... Student ideas: ... (What about this ball? What is making it keep moving? ...) Something that makes an object move change its motion. Change in motion means velocity changes - i.e. the object accelerates. Forces occur when two objects interact. How is the word “force” used in other ways in our societ ...
... Student ideas: ... (What about this ball? What is making it keep moving? ...) Something that makes an object move change its motion. Change in motion means velocity changes - i.e. the object accelerates. Forces occur when two objects interact. How is the word “force” used in other ways in our societ ...
Sects. 5.3 through 5.4
... An air puck of mass m1 is tied to a string and allowed to revolve in a circle of radius R on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a counterweight of mass m2 is tied to it (Fig. P5.50). The suspended object remains in equil ...
... An air puck of mass m1 is tied to a string and allowed to revolve in a circle of radius R on a frictionless horizontal table. The other end of the string passes through a hole in the center of the table, and a counterweight of mass m2 is tied to it (Fig. P5.50). The suspended object remains in equil ...
Newton`s Laws and Forces
... What direction does the friction force act? A. Perpendicular to the surface in the same direction as the motion. B. Parallel to the surface in the same direction as the motion. C. Perpendicular to the surface in the opposite direction of the motion. D. Parallel to the surface in the opposite direct ...
... What direction does the friction force act? A. Perpendicular to the surface in the same direction as the motion. B. Parallel to the surface in the same direction as the motion. C. Perpendicular to the surface in the opposite direction of the motion. D. Parallel to the surface in the opposite direct ...
Exam 2 Physics 125 Fall 2008 Name:
... 5. Immediately after a football on the ground is kicked, it acquires a velocity whose magnitude is 25 m/s and whose direction is at 65° with the horizontal. Neglecting air resistance, find how long the ball stays in the air. (a) (b) (c) (d) ...
... 5. Immediately after a football on the ground is kicked, it acquires a velocity whose magnitude is 25 m/s and whose direction is at 65° with the horizontal. Neglecting air resistance, find how long the ball stays in the air. (a) (b) (c) (d) ...
Causes of circular motion
... centripetal acceleration is determined from the free-body diagram (tension, gravity, friction, normal force, etc). Since F=ma and ac=v2/r, the magnitude of the centripetal force equals mv2/r or, written together, Fc=mv2/r. The direction of the centripetal force is the same as the centripetal acc ...
... centripetal acceleration is determined from the free-body diagram (tension, gravity, friction, normal force, etc). Since F=ma and ac=v2/r, the magnitude of the centripetal force equals mv2/r or, written together, Fc=mv2/r. The direction of the centripetal force is the same as the centripetal acc ...