Work and Energy
Stored energy that is based on the position of an object.
What is potential energy?
This is the product of an object's mass and velocity.
What is momentum?
The type of charge that repels a positive charge.
What is another positive charge?
The force that bends space-time and is relatively weak.
What is gravity?
What is a transverse wave?
Energy of motion.
What is kinetic energy?
This is the law stating that the total momentum of a system does not change.
What is the law of conservation of momentum?
The type of charge that attracts a positive charge.
What is a negative charge?
The approximate acceleration due to Earth's gravity near Earth's surface.
What is 10 m/s2?
The type of wave in which the wave particles move parallel to the direction of the wave.
What is a longitudinal wave?
The unit for energy.
What is a joule?
This is the change in momentum over the change in time.
Like directions, magnets have these types of poles.
What are north and south?
The approximate value of the universal gravitational constant.
What is 6.67 x 10-11?
What is a longitudinal wave?
The gravitational potential energy of an object that has a mass of 1 kg and is 2 meters above the ground. (Hint: PE = mgh; g = 10 m/s2)
What is 20 joules?
The momentum of an object with a mass of 15 kg and a velocity of 15 m/s. (p = mv)
What is 225 kgm/s?
The stronger force between gravity and magnetism.
What is magnetism?
The magnitude of the gravitational force an object exerts on the Earth if the Earth exerts a gravitational force of 15 N on that object.
What is 15 N?
The distance between a point in a wave to a similar point in the next wave (ex. the top of a wave to the top of the next wave).
What is a wavelength?
The kinetic energy of an object that has a mass of 1 kg and a velocity of 2 m/s. (Hint: KE = 0.5mv2)
What is 2 joules?
The impulse of an object that has a force of 10 Newtons applied over a period of 3 seconds. (J=Ft)
What is 30 kgm/s?
The change in electric force if the distance between the two charges is halved (decreased 2 times).
What is an increase of 4 times?
The change in gravitational force if the mass of one of the objects is doubled (increased 2 times).
The speed of a wave that has a wavelength of 7 meters and a frequency of 7 Hertz. (speed = wavelength x frequency)
What is 49 m/s?