Newton`s 1st Law
... Let’s Review • Newton's first law of motion states that __________. • A) an object will remain at rest or keep moving with a constant velocity unless a force acts on it • B) acceleration is calculated by dividing the force exerted on an object by the mass of the object • C) when a force acts on an ...
... Let’s Review • Newton's first law of motion states that __________. • A) an object will remain at rest or keep moving with a constant velocity unless a force acts on it • B) acceleration is calculated by dividing the force exerted on an object by the mass of the object • C) when a force acts on an ...
Newton`s Laws and Force Review Key
... 18. According to Newton’s second law, the acceleration of an object ______ its mass. a. is directly proportional to b. is inversely proportional to c. doesn’t depend on 19. The acceleration produced by a net force on an object is _____. a. directly proportional the magnitude of the net force. b. in ...
... 18. According to Newton’s second law, the acceleration of an object ______ its mass. a. is directly proportional to b. is inversely proportional to c. doesn’t depend on 19. The acceleration produced by a net force on an object is _____. a. directly proportional the magnitude of the net force. b. in ...
In-Class Examples 4.11
... a. Determine the following, expressing all answers in terms of h, vo, and g. i. The time required for the object to hit the ground after the string breaks. ( t = 2h / g ) ...
... a. Determine the following, expressing all answers in terms of h, vo, and g. i. The time required for the object to hit the ground after the string breaks. ( t = 2h / g ) ...
P3 REVISION POWERPOINT - crypt
... • The size of the force is increased if the current or the strength of the magnetic field is increased. • The direction of the force is reversed if the direction of the current or the magnetic field is reversed. • The direction of the force is at right angles to the direction of the magnetic field a ...
... • The size of the force is increased if the current or the strength of the magnetic field is increased. • The direction of the force is reversed if the direction of the current or the magnetic field is reversed. • The direction of the force is at right angles to the direction of the magnetic field a ...
Simple Harmonic Motion
... 10. The free-fall acceleration on Mars is 3.7 m/s2. (a) What length of pendulum has a period of 1 s on Earth? What length of pendulum would have a 1-s period on Mars? (b) An object is suspended from a spring with force constant 10 N/m. Find the mass suspended from this spring that would result in a ...
... 10. The free-fall acceleration on Mars is 3.7 m/s2. (a) What length of pendulum has a period of 1 s on Earth? What length of pendulum would have a 1-s period on Mars? (b) An object is suspended from a spring with force constant 10 N/m. Find the mass suspended from this spring that would result in a ...
Day 3
... As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover the same distance on the walkway? Assume that ...
... As you hurry to catch your flight at the local airport, you encounter a moving walkway that is 85 m long and has a speed of 2.2 m/s relative to the ground. If it takes you 68 s to cover 85 m when walking on the ground, how long will it take you to cover the same distance on the walkway? Assume that ...
Chapter 10 Lecture Notes 1. Definition of Fluids
... principle which describes this around 250 B.C. Archimedes’ principle can be stated as any body completely or partially submerged in a fluid i s buoyed up by a force equal to the weight of the fluid displaced by the body. B = wfluid where B is the magnitude of the buoyant force and W fluid is the wei ...
... principle which describes this around 250 B.C. Archimedes’ principle can be stated as any body completely or partially submerged in a fluid i s buoyed up by a force equal to the weight of the fluid displaced by the body. B = wfluid where B is the magnitude of the buoyant force and W fluid is the wei ...
Ch_04
... 4-6 Weight – the Force of Gravity; and the Normal Force An object at rest must have no net force on it. If it is sitting on a table, the force of gravity is still there; what other force is there? The force exerted perpendicular to a surface is called the normal force. It is exactly as large as nee ...
... 4-6 Weight – the Force of Gravity; and the Normal Force An object at rest must have no net force on it. If it is sitting on a table, the force of gravity is still there; what other force is there? The force exerted perpendicular to a surface is called the normal force. It is exactly as large as nee ...
Physics 161 Exam #2 ANSWER KEY Dr. Dennis
... pendulum is released from rest with the string horizontal. At the lowest point of its swing, when it is moving horizontally, the ball collides with a 0.80-kg block initially at rest on a horizontal frictionless surface. The speed of the block just after the collision is 3.0 m/s. What is the speed of ...
... pendulum is released from rest with the string horizontal. At the lowest point of its swing, when it is moving horizontally, the ball collides with a 0.80-kg block initially at rest on a horizontal frictionless surface. The speed of the block just after the collision is 3.0 m/s. What is the speed of ...
Forces and Motion
... Shows the relationship between an objects mass its acceleration and the applied force. Basically stated… it takes a stronger force to move a heavier object that a lighter object and a stronger force to get an object to move faster ...
... Shows the relationship between an objects mass its acceleration and the applied force. Basically stated… it takes a stronger force to move a heavier object that a lighter object and a stronger force to get an object to move faster ...
The branch of mechanics dealing withy the cause of motion is called
... ground pushes up all over the bottom surface, we draw single vectors representing the sum of these forces acting at the center of mass of the box. W ...
... ground pushes up all over the bottom surface, we draw single vectors representing the sum of these forces acting at the center of mass of the box. W ...
Unit 3 Test Study Guide
... • Only unbalanced forces can cause an object to stop, start, or change directions. • The overall force on an object after all the forces have been added together is the net force. ( A non-zero net force ) • Equal forces acting on an object in opposite directions are balanced forces. ...
... • Only unbalanced forces can cause an object to stop, start, or change directions. • The overall force on an object after all the forces have been added together is the net force. ( A non-zero net force ) • Equal forces acting on an object in opposite directions are balanced forces. ...
File
... Sports announcers will occasionally say that a person is accelerating if he/she is moving fast. Yet acceleration has nothing to do with going fast. A person can be moving very fast and still not be accelerating. Acceleration has to do with changing how fast an object is moving. If an object is not c ...
... Sports announcers will occasionally say that a person is accelerating if he/she is moving fast. Yet acceleration has nothing to do with going fast. A person can be moving very fast and still not be accelerating. Acceleration has to do with changing how fast an object is moving. If an object is not c ...
Chapter 4 - My Haiku
... • If you believe (which you should) every force has an equal and opposite force, then why would anything ever move? To understand why things move you must look at the individual forces acting on an object. ...
... • If you believe (which you should) every force has an equal and opposite force, then why would anything ever move? To understand why things move you must look at the individual forces acting on an object. ...
Aristotle on Motion
... counteracts the weight force for objects in freefall Consider a hammer and a feather: Unlike the hammer, the feather has a small weight, so air resistance quickly builds to equal its weight ...
... counteracts the weight force for objects in freefall Consider a hammer and a feather: Unlike the hammer, the feather has a small weight, so air resistance quickly builds to equal its weight ...
AQA Physics and Additional Science: P2 Revision checklist P2.1
... P2.1 Forces and their effects http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/forces/ P2.1.1 Resultant forces Whenever two objects interact, the forces they exert on each other are equal and opposite. Forces that are acting at a point can be replaced by a single resultant force. Forces tha ...
... P2.1 Forces and their effects http://www.bbc.co.uk/schools/gcsebitesize/science/add_aqa/forces/ P2.1.1 Resultant forces Whenever two objects interact, the forces they exert on each other are equal and opposite. Forces that are acting at a point can be replaced by a single resultant force. Forces tha ...
Chapter 12
... It depends on the material being deformed It also depends on the nature of the deformation ...
... It depends on the material being deformed It also depends on the nature of the deformation ...
Buoyancy
In science, buoyancy (pronunciation: /ˈbɔɪ.ənᵗsi/ or /ˈbuːjənᵗsi/; also known as upthrust) is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus the pressure at the bottom of a column of fluid is greater than at the top of the column. Similarly, the pressure at the bottom of an object submerged in a fluid is greater than at the top of the object. This pressure difference results in a net upwards force on the object. The magnitude of that force exerted is proportional to that pressure difference, and (as explained by Archimedes' principle) is equivalent to the weight of the fluid that would otherwise occupy the volume of the object, i.e. the displaced fluid.For this reason, an object whose density is greater than that of the fluid in which it is submerged tends to sink. If the object is either less dense than the liquid or is shaped appropriately (as in a boat), the force can keep the object afloat. This can occur only in a reference frame which either has a gravitational field or is accelerating due to a force other than gravity defining a ""downward"" direction (that is, a non-inertial reference frame). In a situation of fluid statics, the net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body.The center of buoyancy of an object is the centroid of the displaced volume of fluid.