Physics Final Exam Review JEOPARDY! Click Once to Begin Physics Final Exam Review To change the question and answer slides, select the question or answer text box and type in your own questions and answers. To play, click on a question on the game board to go to that question. The house icon will take you to the game board and the question mark icon will take you to the answer slide. Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD

JEOPARDY! Define This Graphing Vectors / Projectiles Newton’s Laws Circular Motion More 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500 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

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

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 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 3rd 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 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

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

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

A constant 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 constant 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

Daily Double!!! 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? 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/why 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

2nd Law Fnet=ma 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 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

Explain why an object that is accelerating must have unbalanced forces acting on it. Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD

Based on Newton’s 2nd Law (Fnet=ma), we know that in order for there to be an acceleration, there has to be a non-zero net force. 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

In order for Suzie and Johnny to balance on a teeter-totter, Johnny has to sit closer to the edge of his side. Who weighs more, Suzie or Johnny? Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD

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

Torque = (force perp.) distance 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

Mary had a 15 kg little lamb. What was the lamb’s weight? Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD

142.5 N 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 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 and triple one of the masses, what will happen to the gravitational force between the two objects? Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD

The new gravitational force will be 3/4 the original gravitational force. Template by Modified by Bill Arcuri, WCSD Chad Vance, CCISD