Forces and Motion
Waves
Energy
Mixed Bag
Math used in Science
100
Motion happening between 5:00 and 5:15
What is "at rest"?
100
Type of wave shown here:
What is transverse?
100
Point where KE is highest and lowest
Kinetic Energy highest - Point X
Kinetic Energy lowest - Point W
100
This device uses infrared waves to convey signals
radio telescope
MRI machine
remote control
cellphone
What is a remote control?
100
What is the TME (total mechanical energy) of this system?
What is 1,500 Joules?
200
Type of motion that this graph indicates
What is "constant speed"?
200
The wave property marked by "W".
What is "amplitude"?
200
The type of circuit shown here:
What is a parallel circuit?
200
This images shows that this type of reaction has taken place.
What is exothermic?
200
A wave with a frequency of 15 hertz has a wavelength of 5 meters. At what speed will this wave travel? Include correct units!
15 Hz x 5 m = 75 m/s
300
Motion that occurs after 30 seconds
Slowing down, decelerating, negative acceleration
300
Type of wave behavior seen here.
What is refraction?
300
A chemical reaction where heat is absorbed and the surrounding temperature falls
What is endothermic?
300
A force that is missing in this image…
What is friction?
300
You push a box with a net force of 20 newtons up a ramp that is 3 meters long. The amount of work you put into the ramp is…
What is 60 Joules?
W = fd
400
If all four objects have the same net force exerted on them, which object will accelerate the least?
basketball (0.7 kg).
cannonball (5.5 kg).
bowling ball (7.3 kg)
400
Which wave carries the most energy and WHY?
The bottom wave - it has the highest amplitude.
400
What simple machines do for the person putting work into the machine.
What is "make work easier"? or
What is "trade longer distance for less force"?
400
The net force acting on this object is…
What is 1 newton right?
400
The current running through this simple circuit is…
9 V / 4 ohms = 2.25 amps
500
The law of conservation of momentum states this…
What is "the total momentum before and after a collision is the same"?
500
These horses are seen in which type of EM light?
What is "infrared"?
500
If the 1st bulb goes out, the 2nd bulb will… AND how do you know?
…remain lit - it's in a parallel circuit.
500
What is the velocity of the two astronauts after they collide. Notice one is moving and the other is at rest before the collision.
Total momentumbefore = total momentumafter
(80 • 4) + (80 • 0) = 160x
320 = 160x
x = 2 km/hr
500
A car going 22 m/s accelerates to pass a truck. Five seconds later the car is going 36 m/s. Calculate the acceleration of the car.
(36-22) m/s / 5 sec = 2.8 m/s2