Net Work is equal to the change in what type of energy?
What is KINETIC ENERGY.
100
This device is used to charge electrical potential energy.
What is a CAPACITATOR.
100
What is the measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave?
What is PITCH.
100
Which one of Newton's law states that for every reaction, there is an equal but opposite reaction?
What is NEWTON'S 3rd LAW.
200
When solving for displacement, what other variable do you need when initial velocity and acceleration is given?
What is FINAL VELOCITY.
200
Gravitational Potential Energy can be calculated by multiplying mass, free-fall acceleration, and ____ together.
What is HEIGHT.
200
True or False: Only differences in electric potential from one position to another are useful in calculations.
What is TRUE.
200
Audible sound waves have frequencies between ______Hz and __________Hz.
What is 20 Hz AND 20,000 Hz.
200
The state in which the net force on an object is zero.
What is the EQUILIBRIUM.
300
A system for specifying the precise location of objects in space and time.
What is FRAME OF REFERENCE
300
True or False: In the absence of friction, mechanical energy is conserved, so the amount of mechanical energy remains constant.
What is TRUE.
300
Can the direction of conventional current ever be opposite the direction of charge movement? If so, when?
What is YES. IF THE CHARGE CARRIERS ARE NEGATIVE.
300
What is the physical difference between concave and convex mirrors?
What is CONCAVE=SEGMENT OF THE INSIDE OF THE MIRROR, CONVEX=OUTWARD CURVED SEGMENT OF A SPHERE.
300
This type of force resists the initiation of sliding motion between two surfaces that are in contact and at rest.
What is STATIC FRICTION.
400
True or False: Free-Fall acceleration is the same for all objects, regardless of mass.
What is True
400
What is the rate at which work is done or the rate of energy transfer?
What is POWER.
400
Resistance depends on length, cross-sectional area, temperature, and _______.
What is MATERIAL.
400
Is the brightness of light inversely proportional to the square of the distance from the light source?
What is YES.
400
What is the tendency of an object not to accelerate?
What is INERTIA.
500
A school bus takes 0.530 h to reach the school from your house. If the average velocity of the bus is 19.0 km/h to the east, what is the displacement?
What is 10.1 km TO THE EAST
500
Two identical objects move with speeds of 5.0 m/s and
25 m/s. What is the ration of their kinetic energies?
What is 1 to 25.
500
A hair dryer draws a current of 9.1 A. How long does it take for 1.9 x (10 to the 3rd) C of charge to pass through the hair dryer? Give answer in minutes.
What is 3.5 min.
500
What is the wavelength for an FM radio signal if the number on the dial reads 99.5 MHz?
What is 3.02 m.
500
Which is usually greater, the maximum force of static friction or the force of kinetic friction?