Conservation of Momentum
A ___________ causes and is equal to a change of momentum.
Impulse force
Joule watt
what is impulse
The heat from a hot burner to a pot is transferred by
convection
radiation
insulation
conduction
what is conduction
what is the Potential energy of a 0.25-kg volleyball when it is 1.3 meters above the floor?
PE=m*g*h g=9.8m/s2
what is 3.2 Joules of PE
When water is heated from 10 degrees C to 60 degrees C, what is the change in temp. of water.
what is 50 degrees Celsius
A wave in which the particles of the medium move perpendicular to the direction the wave is traveling.
surface wave medium
Electromagnetic wave transverse
what is electromagnetic wave
Cart A is pulled with a 2-N force for 2 seconds and Cart B is pulled with a 1-N force for 3 seconds, which cart experiences the greatest impulse?
what is Cart A
Lava lamps work when the light bulb leaks the wax, the wax rises. When the wax cools, it falls. This cycle of rising/falling is an example of:
conduction radiation
convection
what is convection
The gravitational potential energy of a 3.0 m high diving board is 1800-J. What is the person's mass. 61.0-Kg
m=PE/gh
what is 61.0-kg
The amount of energy required to raise the temp. 1-degrees C for every kilogram is called.
Thermal Energy Specific Heat
Temperature Kinetic Energy
what is Specific heat
A sound wave moving through the air is what kind of wave?
longitudinal water wave
a tranverse wave hand wave
what is a longitudinal wave
what is 8m/s
Ironing a shirt is an example of condensation, conduction, convection, or radiation.
what is conduction
what is the mass of a rock that has 26-Joules of Kinetic energy, when it moves with a speed of 2.7 m/s?
m= 2*KE/v2
what is 7.13-kg
what is the formula to calculate heat energy required to raise the temp. of any substance.
Q=mcT Q=mc
Q=.5mv m=qc
what is Q=mct
which of these is the best way to produce a Longitudinal wave?
heating a block of ice
squeezing and releasing a metal spring
freezing a tray of water
shaking a rope up and down
what is squeezing and releasing a metal spring
The total momentum before a collision is _________ the total momentum after a collision.
equal to less than
more than it depends on the type of collision
what is equal to
Jackson likes to cook but is always in a hurry. he needs a pot that will cook his food quickly. Which is the best material for his cooking pot?
copper glass
plastic wood
what is copper
as an object is falling, it gains less ...............
kinetic energy G-Potential Energy
Electrical Energy Chemical Energy
what is Gravitational Potential Energy
The specific heat of water is 4.18J/g*C. The specific heat of wood is 1.760 J/g*C. what material needs more energy to raise the temp?
water wood
both are the same
what is water
All waves carry .............................
energy light
matter particles
what is energy
How can a basketball and a car have the same momentum?
have the same speed one is moving backwards
have different speeds they can't have the same momentum
what is having different speeds
a material with a __________ temperature has particles that have a great average kinetic energy.
high low
what is high temperature
An Object has 64-J of Kinetic Energy, 134-J of potential energy, then it will have _____________ of Mechanical Energy.
8,576-J 70-J
189-J 198-J
what is 198-Joules
How much heat Energy is needed to raise the temp. of 2-Kg of water from 5-degrees C to 100 degrees C. The specific heat capacity of water is 4,200J/Kg*C
what is 798,000 Joules of energy