1D Motion
Forces
Momentum and Energy
Electricity and Waves
Random
100
Name the three types of motion.
At rest, constant velocity, acceleration
100
Which of Newton's Laws states: "An object in motion tends to stay in motion, and an object at rest tends to stay at rest."
First Law
100
How is momentum calculated?
p = m*v
100
What is equation represents Coulomb's Law?
Fe = kq1q2/r2
100
Identify the type of motion.
Constant velocity
200
What is the difference between distance and displacement?
Displacement has direction (vector).
200
What is required to change the motion of an object?
Net Force
200
How is Impulse calculated?
J= F*t
200
What equation represents Ohm's Law?
V = I*R
200
A bullet is fired horizontally and an identical bullet is dropped from the same height at the same time. Which bullet will strike the ground first?
They will hit the ground at the same time.
300
If Susana walks 15 m north, 5 m south, and then another 13 m north, what is her displacement?
23 m [North]
300
A DJI Mini 2 (personal drone) is able to rise by tilting its rotating blades to push the air down. This is an example of which of Newton's Laws?
Third Law
300
What has more momentum: a bulldozer parked at a construction site or a leaf blowing in the wind?
The leaf
300
How many complete wavelengths does the young man make while shaking a rope?
4
300
Power outlets in our homes typically have a standard voltage of?
120 V
400
If Susana walks 15 m north, 5 m south, and then another 13 m north, what is her distance?
33 m
400
A bug hits a windshield (and dies). Which experiences the greater amount of force, the bug or the windshield?
They experience the same amount of force.
400
What type of energy describes the energy of objects in motion?
Kinetic Energy
400
If this wave occurred in 20 seconds, what would the frequency of the wave be?
0.2 Hz
400
In Coulomb's Law equation, what does "k" represent?
Coulomb's constant
9 x 109
500
The speedometer of your car shows you the average speed. True or False?
False, it tells you your instantaneous speed.
500
The Queen of England's derby hat has a weight of 2.4 Newtons. When it is sitting on her head, the net force acting on her hat is _____.
0 N (at rest)
500
What type of collision results in two objects becoming stuck together?
Inelastic Collision
500
The Doppler Effect is an apparent change in frequency of a wave due to _____.
A. Motion
B. Frequency
C. Wavelength
D. Amplitude
A. Motion
500
What is the difference between speed and velocity?
Velocity has direction
600
Is an object traveling in a circular path at a constant speed accelerating? Why or why not?
yes, it is changing direction
600
Compared to what he weighs on the moon, Dababy on earth will weigh _____.
More (earth has more gravity than the moon)
600
A 75 kg daredevil is shot out of a 150 kg cannon at a speed of 15 m/s. What is the recoil speed of the cannon?
-7.5 m/s
600
Which electromagnetic wave travels the fastest?
They all travel at the same speed (speed of light)
600
If 3 batteries are arranged in series, how does this affect the circuit it's connected to?
Increases the voltage
700
A free falling object has constant...?
Acceleration
700
How is weight calculated?
w= mass x gravity
700
A 75 kg daredevil is shot out of a 150 kg cannon at a speed of 15 m/s. What is the total momentum after firing?
0 kg*m/s
700
What is the equivalent resistance of this circuit?
18 ohms
700
Andrea is riding her bicycle at 3 m/s down the road. A car approaches her head on, moving at 44 m/s. What is the car's speed relative to Andrea?
47 m/s
800
Marco throws a ball straight in the air. What is the rate of acceleration at the top of the ball's flight?
-9.81 m/s2
800
What is the mass of a 1492 N elephant eating grass on the savanah?
152 kg
800
A 2 kg rock is dropped from a cliff 90 meters high. What is it's GPE at the top of the cliff?
1765 J
800
What is the equivalent resistance in this circuit?
0.625 ohms
800
Explain the relationship between the gravitational force between 2 objects and the distance between them.
Inverse squared (FG=1/d2)
900
A bus starts from rest at a red light and accelerates at 2.3 m/s/s for 6 seconds. What is its final velocity?
13.8 m/s
900
What is the mass of an object that is accelerating at 20 m/s2 with a force of 10,000 N?
500 kg
900
A 2 kg rock is dropped from a cliff 90 meters high. What is its kinetic energy at the bottom of the cliff?
1765 J
900
A pendulum was measured for 20 oscillations with times of 13.4 s, 14.2 s, and 13.7 s. What is the average period of the pendulum?
0.688 seconds
900
How does doubling the distance between 2 objects affect the gravitational force between them?
1/4 the force
1000
A bus starts from rest at a red light and accelerates at 2.3 m/s/s for 6 seconds. How far has it traveled at the end of that time period?
41.4 m
1000
A 12 kg box is being pushed by a 42 N force. If the force of friction is 25 N, what is the net force acting on the box?
17 N
1000
A 2 kg rock is dropped from a cliff 90 meters high. After falling 20 meters, how much GPE does it have?
1373 J
1000
How much current is delivered to resistor 3?
9 Amps
1000
What is my first name? It must be spelled correctly.
Carie