Reference Table
Kinematics/Projectiles
Forces and Inclines
Circular Motion and Gravity
Energy
100
What is the universal gravitational constant? (With units)
6.67 x 10^-11 Nm^2/kg^2
100
A car accelerates uniformly from 5 m/s East to 12 m/s East. What is the average velocity of the car?
8.5 m/s East
100
Two cars crash into each other. Car A is a sedan with a mass of 1000 kg. Car B is an SUV and has a mass of 1800 kg. When the crash occurs, Car A exerts a force of magnitude "F" on Car B. What is the magnitude of the force that Car B exerts on car A?
"F"
100
Draw a diagram for an object moving counter-clockwise around a circle. Draw an arrow to show the speed and centripetal force at a specific point on its path.
100
Energy is the ability of...
things to do stuff
200
What does "k" represent?
Spring Constant OR Electrostatic Constant
200
A 0.05 kg marble rolling at 8 m/s rolls off a level table that is 0.6 m tall. At the same time a second marble with twice the mass is dropped from the same height. Considering the relative speeds of both marbles, which marble reaches the ground first?
Same Time
200
What is the acceleration of the box in the free body diagram?
0.36 m/s^2 right
200
The centripetal acceleration of an object is 5 m/s^2. What would the new centripetal acceleration be if the speed of the car was 6 times faster?
180 m/s^2
200
Energy can never be...
created or destroyed
300
n =
c/v
300
A car accelerates uniformly from 5 m/s East to 12 m/s West. It had an acceleration of 0.5 m/s^2 West. What is the magnitude and direction of the car's displacement?
119 m West
300
What is the magnitude of the normal force acting on this block?
64.2 N
300
The magnitude of the gravitational force acting between two planets is "F". What would the new magnitude be if the mass of one planet was 5 times larger, the second planet was twice as massive, and the distance between the planets is reduced by a factor of 3?
90F
300
Potential energy can be calculated by the formula:
PE = mgh
400
What is the equation for the change in thermal energy?
mcΔT
400
A truck driving at 23 m/s drives off a horizontal cliff for a movie. If the cliff is 30 m. How far from the base of cliff does the car land?
56.8 m
400
A 3kg ball is dropped on planet Y. The ball falls 90 m in 4.5s. How much does the ball weigh on planet Y?
26.7 N
400
A toy train completes one lap of a circular track in 20 seconds. If the speed of the train is 0.25 m/s, then what is the radius of the circular track?
0.8 m
400
A 5 kg dog running at 9 m/s has how many joules of kinetic energy?
202.5 joules
500
What is the frequency of a Bluetooth signal?
2.5 x 10^9 Hz
500
How high does a projectile go when it is launched at a velocity of 30 m/s and at an angle of 52 degrees?
28.5 m High
500
If there is 10N of friction slowing this block down, what is the acceleration of the block down the ramp?
4.8 m/s^2
500
Two asteroids are pulling toward each other with 4.5 x 10^6 N of force. If the asteroids have the same mass and are 620 m apart, then what is the mass of each asteroid?
1.61 x 10^11 kg
500
A 2kg object is dropped from a height of 30 m. If all its energy is converted from potential to kinetic, how fast is the object moving when it reaches the ground?
24.2 m/s