A cannonball is launched from the ground at an angle of 30 degrees above the horizontal and a speed of 30 m/s. Ideally, the ball will land with what speed?

One object has twice as much mass as another object. The first object also has twice as much ___?

What is the maximum resultant possible when adding a 2-N force to an 8-N force?

How much does a 3.0-kg bag of bolts weigh?

What is the acceleration produced by a net force on an object?

Suppose a particle is accelerated through space by a constant 10-N force. Suddenly the particle encounters a second force of 10-N in a direction opposite to that first force. What happens to the particle?

A karate chop delivers a blow of 2300 N to a board that breaks. What is the force that acts on the hand during this feat?

Superman is at rest in space when he throws an asteroid that has more mass than he does. Which moves faster, Superman or the asteroid?

Power is defined as ___?

Potential energy is the energy an object has because of its ___

An object that has kinetic energy must be ___

How much power is required to do 40 J of work on an object in 5 s?

How much work is done on a 60-N box of books that you carry horizontally across a 6-m room?

If you whirl a tin can on the end of a string and the string suddenly breaks, what will the can do?

A very massive object A and a less massive object B move toward each other under the influence of mutual gravitation. Which force, if either, is greater?

The circular orbit of a satellite orbiting Earth is characterized by a constant _____

An object dropped from rest almost infinitely far from Earth falls to Earth because of Earth's gravitational field, and strikes the surface with a speed of about ____ km/s?

When you approach a light source, the wavelength of emitted light appears ___?

A spaceship whizzes past a space station at close to the speed of light. An observer on the station measures the length of the spaceship as less than when the ship is at rest, what does the observer on the spaceship measure the length of the space station to be?

Which temperature scale labels the freezing point of water at 0 degrees?

A container of water has its smallest volume at ____ degrees Celsius?

Describe heat transfer by conduction.

The reason light-colored clothes help keep you cool in warm weather is that clothes of light color ____.

When water freezes, it ______.

In order to walk barefoot on hot coals without harming your feet, less energy would get to your feet if your feet were ____?

How much energy is released when 1 gram of steam condenses to water at 100 degrees Celsius?

The lowest possible temperature in nature is ____ Celsius?

The first law of thermodynamics is a restatement of what?

When two or more waves are at the same place at the same time, the resulting effect is called _____

A weight on the end of a spring bobs up and down one complete cycle every 4 s. What is the frequency in Hz?

Sound waves cannot travel in a ____

A singer shattering crystal glass with her voice is demonstration of _______

A 1134-Hz tuning fork is sounded at the same time a piano note is struck. You hear three beats per second. What is the frequency of the piano string?

Compared to the wavelength of UV waves, the wavelength of infrared waves is _______

Colors seen on a TV result from color ______?

Complementary colors are two colors that ______

The white cap of waves as they overturn are evidence that the water has __________

What is the law of reflection?

A beam of light emerges from water into air at an angle. Which direction is the beam bent?

Two charges are separated by a certain distance. If the magnitude of each charge is doubled, the force on each charge is ________.

Two charges separated a distance of 1 m exert a 2 N force on each other. If the charges are pushed to a separation of 1/3 m, the force on each charge will be ________

Describe an electric field

For most conductors, as their temperature increases, their resistance _________

Electric power can be defined as ______

If you accidentally grabbed the prongs of a partially plugged-in 120 V electrical plug on a day when your skin resistance was 130,000 ohms, how much current would pass through your body?

Electrical resistance is measured in ______

Two lamps, one with a thick filament and one with a thin filament, are connected in series. The current is greater in which lamp?

A 60 W light blub and a 100 W light blub are both connected in parallel to a 120 V outlet. Which light blub has more current in it?

Which pole of a compass needle points to a south pole of a magnet?