Vectors
Graphs
Units
Motion
Forces
Circular Motion and Gravity
Energy
Momentum
100
Impulse
Vector or Scalar?
Vector
100
What is the average velocity from 15s until 30 seconds?
0.47 m/s
100
What are the units for acceleration?
m/s^2
100
A toy car completes a lap of a 3m long track in 9 seconds. It finishes the second lap in 15 seconds. What is the average speed for the two laps?
0.25 m/s
100
More ______ equals more inertia.
MASS
100
What is causing the centripetal force in this gif?
Normal Force
100
A 2kg book has 45 joules of Potential Energy on the shelf. How tall is the shelf?
2.3 meters
100
What type of collision is it when two cars crash and stick together with velcro?
Inelastic
200
Work
Vector or Scalar?
Scalar
200
Describe the motion of the object depicted by this graph:
Moving fast +; Slowing down to a stop; speeding up in - direction. OR "Constant Acceleration"
200
What are the units for impulse
kgm/s OR Ns
200
A 5kg bowling ball and a toyota prius are dropped from an airplane that is moving 70 m/s horizontally. The plane is 500 meters above level ground. If both objects have a initial vertical velocity of 0m/s and air resistance can be ignored, then which object will hit the ground first?
It's a tie!
200
A 20N monkey is pulling a wagon full of bananas with a mass of 105 kg. The monkey's applied force is 35 Newtons. What is the magnitude of the force that the wagon exerts on the monkey?
35 Newtons
200
Draw a diagram for a ball moving in a circular path. The ball is traveling clockwise. Draw the centripetal force, centripetal acceleration, and velocity vectors for the ball.
200
A ball falling to Earth triples its speed as it falls. If it began with 5 joules of kinetic energy, then how much kinetic energy does it have?
45 joules
200
A 0.05kg bullet is fired from a 6kg gun at 700m/s. The gun recoils with an unknown velocity. What is the total momentum of the system?
0 Ns
300
1
300
To calculate work, you must find the:
Area
300
Units for Universal Gravitational Constant?
Nm^2/kg^2
300
A projectile is launched at an angle of 70 degrees with the east horizontal and a velocity of 45 m/s. What is the magnitude AND direction of the velocity of the projectile at the highest point in its path?
15.4 m/s east
300
A wooden box is being pulled to the right across a wooden table by a 8N force at a constant speed of 2 m/s. What is the force of friction acting on the box?
8N
300
The gravitational force between two asteroids is 700N. What would the new force be if the distance between them was cut in half AND the mass of one of the asteroids was tripled?
84 N
300
A 5kg box is lifted 8 meters above the ground. How much work was done to lift the box?
392 joules of work
300
How long will it take to stop a 600kg bull running at 7 m/s with a force of 20N?
210 seconds
400
What is the smallest and largest magnitudes a 9 m/s^2 vector and a 14 m/s^2 vector could produce?
5m/s^2 and 23 m/s^2
400
How far did the object in this graph travel during the first 20 seconds?
300 m
400
kgm^2/s^2 is the same as what unit?
Joule
400
A toy train completes one lap of its 9 m long, oval shaped train track in 31 seconds. It completes its second lap in 45 seconds. What is the average velocity of the train?
0 m/s
400
What is the acceleration of the pulley system?
3.27 m/s^2
400
Two hills are 1 km apart and each have a mass of 4 x 10^8 kg. What is the gravitational force between them?
10.7 N
400
A 35000 watt rocket engine accelerates a 800kg mass with an average speed of 2.4 m/s. What applied force does the engine exert?
14583.3 N
400
Two carts, both with 50 kg of mass, crash head on and get stuck together. Cart A had a velocity of +5 m/s, and Cart B had a velocity of -8m/s. What is their combined velocity after the crash?
-1.5 m/s
500
What is the magnitude of the resultant (yellow) vector?
109 N
500
What is the total impulse experienced by the object depicted in the graph below? From 0-5s.
+1 Ns or +1 kgm/s
500
Represent 1 Newton in base SI units. Only use meters, seconds, and kilograms.
kgm/s^2
500
An airplane flying horizontally at 300m/s drops a crate of cargo with a mass of 45kg. If the plane was at an altitude of 2100m, then how far horizontally (dx) does the crate fly during its fall?
6207 m
500
A ramp with an inline angle of 42 degrees has a mass of 18kg resting on it. What is the force of friction?
118.15 N
500
An toy car moving around a circular path completes 4 rotations in 15 seconds. If the path has a radius of 0.9 meters, how fast is the car moving?
1.5 m/s
500
A 50N/m spring is used to launch a 0.05kg foam dart. The spring is compressed 0.08 meters before the dart is released. When the dart emerges from the launcher, it has a velocity of 1 m/s. How much internal energy was lost in the launch?
0.135 joules
500
A 70kg wagon is rolling down a hill at 6 m/s. It experiences a force of gravity of 235 N and rolls down the hill for 4.5 seconds. What is the speed of the wagon after 4.5 seconds?
21.1 m/s