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Physical Science Spring 08 Review. Forces and Motion. Forces and Motion. 1. Speed is the rate of change in position a change in velocity a push or a pull change in location. Forces and Motion. 1. Speed is the rate of change in position a change in velocity a push or a pull
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Physical Science Spring 08 Review Forces and Motion
Forces and Motion 1. Speed is • the rate of change in position • a change in velocity • a push or a pull • change in location.
Forces and Motion 1. Speed is • the rate of change in position • a change in velocity • a push or a pull • change in location.
Forces and Motion 2. Which term indicates both speed and direction? • magnitude • displacement • momentum • velocity
Forces and Motion 2. Which term indicates both speed and direction? • magnitude • displacement • momentum • velocity
Forces and Motion 3. Which is the proper equation for find the speed of an object?
Forces and Motion 3. Which is the proper equation for find the speed of an object?
Forces and Motion 4. Any change in speed or direction is referred to as?
Forces and Motion 4. Any change in speed or direction is referred to as?
Forces and Motion 5. What is a force? a. change in speed over time b. the tendency to resist change in motion c. a push or pull d. apparent weightlessness
Forces and Motion 5. What is a force? a. change in speed over time b. the tendency to resist change in motion c. a push or pull d. apparent weightlessness
Forces and Motion 6. Forces that are equal in size and opposite in direction are a. balanced forces b. equilateral forces c. net forces d. unbalanced forces
Forces and Motion 6. Forces that are equal in size and opposite in direction are a. balanced forces b. equilateral forces c. net forces d. unbalanced forces
Forces and Motion 7. Which of the following will result if balanced forces act on an object? a. the object will accelerate b. the object will slow down c. the object’s velocity will not change d. centripetal force will increase
Forces and Motion 7. Which of the following will result if balanced forces act on an object? a. the object will accelerate b. the object will slow down c. the object’s velocity will not change d. centripetal force will increase
Forces and Motion 8. What is another term for an unbalanced force, a force that is NOT equal in size or opposite in direction? a. balanced force b. gravitational force c. strong force d. net force
Forces and Motion 8. What is another term for an unbalanced force, a force that is NOT equal in size or opposite in direction? a. balanced force b. gravitational force c. strong force d. net force
Forces and Motion 9. What is the result of a net force acting on an object? a. the object will accelerate b. the object remain motionless c. the object’s velocity will not change d. inertia is greater than net forces
Forces and Motion 9. What is the result of a net force acting on an object? a. the object will accelerate b. the object remain motionless c. the object’s velocity will not change d. inertia is greater than net forces
Forces and Motion 10. An objects tendency to resist changes in motion is called ___________? a. acceleration b. friction c. inertia d. unbalanced force
Forces and Motion 10. An objects tendency to resist changes in motion is called ___________? a. acceleration b. friction c. inertia d. unbalanced force
Forces and Motion An object that is only acting under the influence of gravity is ___________ a. decelerating b. in free fall c. stationary d. weightless
Forces and Motion An object that is only acting under the influence of gravity is ___________ a. decelerating b. in free fall c. stationary d. weightless
Forces and Motion For every force there is an equal and opposite reaction force is a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton's 4th Law of Motion
Forces and Motion For every force there is an equal and opposite reaction force is a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton's 4th Law of Motion
Forces and Motion An object at in motion remains in motion unless acted upon by an unbalanced force is which of Newtons laws? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton's 4th Law of Motion
Forces and Motion An object at in motion remains in motion unless acted upon by an unbalanced force is which of Newtons laws? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton's 4th Law of Motion
Forces and Motion The total momentum of objects before a collision equals the total momentum after a collision is described by which law? a. Law of Conservation of Mass b. Law of Conservation of Momentum c. Newtons 4th Law of Motion
Forces and Motion The total momentum of objects before a collision equals the total momentum after a collision is described by which law? a. Law of Conservation of Mass b. Law of Conservation of Momentum c. Newtons 4th Law of Motion
Forces and Motion Which of Newton’s laws describes the relationship between force, mass and acceleration? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton's 4th Law of Motion
Forces and Motion Which of Newton’s laws describes the relationship between force, mass and acceleration? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton's 4th Law of Motion
Forces and Motion If a projectile was fired in space it will continue to travel at a constant velocity until it hits something or is pulled into a gravity field. Which of Newton’s Law’s does this demonstrate? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion
Forces and Motion If a projectile was fired in space it will continue to travel at a constant velocity until it hits something or is pulled into a gravity field. Which of Newton’s Law’s does this demonstrate? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion
Forces and Motion A student leans against the wall. Neither the wall nor the student move. This is an example of which of Newton’s Laws? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion
Forces and Motion A student leand against the wall. Neither the wall nor the student move. This is an example of which of Newton’s Laws? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion
Forces and Motion A player strikes a ball with a bat and the ball changes direction and sails into the outfield. This is an example of which of Newton’s Laws? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion
Forces and Motion A player strikes a ball with a bat and the ball changes direction and sails into the outfield. This is an example of which of Newton’s Laws? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion
Forces and Motion A bowling ball hits some pins. Which is true of the momentum after the collision? a. The total momentum is less b. The total momentum is greater c. The total momentum is equal d. None of the above
Forces and Motion A bowling ball hits some pins. Which is true of the momentum after the collision? a. The total momentum is less b. The total momentum is greater c. The total momentum is equal d. None of the above
Forces and Motion Which of the following is also called the Law of Inertia? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton’s 4th Law of Inertia
Forces and Motion Which of the following is also called the Law of Inertia? a. Newton's 1st Law of Motion b. Newton's 2nd of Motion c. Newton's 3rd Law of Motion d. Newton’s 4th Law of Inertia
Forces and Motion Rank the following in order of increasing inertia. • Tennis ball • Bowling ball • Marble • Wrecking ball
Forces and Motion Rank the following in order of increasing inertia. Marble -> tennis ball -> bowling ball --> wrecking ball
Forces and Motion What equation is related to Newton’s Second Law? • s = d/t • a = (vf – vi)/t • F = ma • p = mv
Forces and Motion What equation is related to Newton’s Second Law? • s = d/t • a = (vf – vi)/t • F = ma • p = mv
Forces and Motion An action force of 450 N pushes on a wall to the left, what is the reaction force? • 450 N up • 225 N left • 225 N right • 450 N right
Forces and Motion An action force of 450 N pushes on a wall to the left, what is the reaction force? • 450 N up • 225 N left • 225 N right • 450 N right
Forces and Motion The gravitational force between two objects depends on what two things? • Size • Distance between the objects • Mass • Velocity • Momentum
Forces and Motion The gravitational force between two objects depends on what two things? • Size • Distance between the objects • Mass • Velocity • Momentum
Forces and Motion What is the gravitational acceleration constant on earth? • 9.8 m/s • 98 m/s • 9.8 m/s2 • 982 mph