Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Click Once to Begin JEOPARDY! Physics Unit 1 Review

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD JEOPARDY! Defini- tions Graphing Vectors / Projectiles Newton’s Laws Circular Motion More

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Daily Double Graphic and Sound Effect! DO NOT DELETE THIS SLIDE! Deleting it may cause the game links to work improperly. This slide is hidden during the game, and WILL not appear. In slide view mode, copy the above (red) graphic (click once to select; right click the border and choose “copy”). Locate the answer slide which you want to be the daily double Right-click and choose “paste”. If necessary, reposition the graphic so that it does not cover the answer text. Daily Double!!!

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Define: Period

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD The amount of time it takes for an object to complete one revolution (travel in a complete circle).

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Define: Centripetal Force

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD When the net force of an object points toward the center of a circular path, it is said to have a centripetal force. In order for there to be circular motion, the net force has to be toward the center of the circle.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Define inertia and identify what it depends on.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD An object’s resistance to a change in velocity. Objects with greater mass have greater inertia.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Define Newton’s 3 rd Law and give an example of it in action.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD For every action force there is an equal and opposite reaction force. Forces come in pairs. Boat moves backwards when you jump off. Balloon flying forward as air escapes.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If you divided the total distance an object traveled by the total time it was traveling, what would you be calculating?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Average Velocity

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD What does a negative velocity look like on a position-time graph?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD A negative slope.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD What does a positive acceleration look like on a position-time graph?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD A curved line in the shape of a smiley face, or bowl.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD What does a negative acceleration look like on a velocity-time graph?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD A negative slope.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD During which time interval(s) is the object stopped?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Third

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD When is the object stopped, accelerating, and/or moving at a constant velocity?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Constant positive Velocity Negative Acceleration Stopped

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD What is the difference between a vector and a scalar?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD A vector has both magnitude AND direction.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If an airplane is flying due East at 130 km/hr, but there is a wind heading due West at 25 km/hr, what is the resultant velocity of the plane?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 105 km/hr due East

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD At the top of the trajectory of a rubber ball thrown in the air, the vertical velocity is 0 m/s. What is the acceleration at the top of the trajectory? Daily Double!!!

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 9.8 m/s/s downward

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If the initial horizontal velocity of a tossed basketball is 8 m/s, what is its horizontal velocity right before it hits the ground?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 8 m/s

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Explain how the horizontal and vertical motion of a projectile (cannonball in flight) are independent.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD The vertical dimension is affected by gravity, so the vertical acceleration is constant (or the vertical velocity is always changing). The horizontal dimension is NOT affected by gravity, so the horizontal velocity is always constant.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Which of Newton’s Laws tells us about Net Force?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 2 nd Law

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Explain why the marker falls into the hoop during the hoop & marker demonstration

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Inertia. The marker wants to maintain its constant velocity of zero. When the force is applied to the hoop, the marker stays at rest, but then falls because of Earth’s gravity.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD An object traveling forward with a constant velocity of 35 m/s is experiencing a net force _____________.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Of Zero N

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Timmy is pushing a chair to the right with a force of 40 N and Sally is pulling the chair to the left. If the net force is zero, what amount of force is Sally pulling with?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 40 N

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If an object is sliding down an incline plane at a constant velocity, the friction force is equal in magnitude but opposite in direction of:

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD The parallel component of the weight

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD An object moving in circular motion travels a distance of ______ in one period.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Circumference  2  r

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD In order to pick up the marble using the Styrofoam cup, you had to spin the marble in a relatively fast circle around the inside of the cup. This circular motion was caused by a force on the marble that pointed in which direction?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Toward the center of the cup

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If an egg being swung in a circle experiences a centripetal acceleration of 57 m/s/s, how many g’s is the egg experiencing?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 5.82 g’s

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD There is always a centripetal acceleration during uniform circular motion because the _______ is always changing.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Velocity (the direction of the velocity vector is always changing)

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Why do people use leverage to help them move heavy objects? (Be specific.)

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Torque = radius (force perp.) The further away from the axis of rotation a person applies a force, the less that force has to be in order to move the object.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD All objects near the surface of the Earth fall at a constant acceleration of 9.8 m/s/s. Why?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD The gravitational force of the Earth.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If the destination of an airplane is due South, but there is a wind blowing due West, what direction should the airplane fly?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Southeast

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Use the circle provided to draw in the velocity vector and the acceleration vector for an object traveling in a clockwise circle. What is the angle between these vectors?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD 90 degrees

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD Explain what happens when a child of small mass pushes her parent while they are both standing on ice. Why does this happen?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD They will travel in opposite directions of each other. The child will move faster and further than the parent. Conservation of Momentum.

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD If you double the distance between two objects, what will happen to the gravitational force between them?

Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD It will be decreased by a factor of 4. Quartered.