Kinematics
The "amount" of something a vector has.
What is magnitude?
This force vector always points straight down towards the Earth.
What is gravity?
Linear momentum is represented by this letter.
What is p?
Work is defined as the change in this quantity.
What is energy?
A negative charge is placed in the electric field of a positive charge. Do the charges feel an attractive or repulsive force?
Attractive force
A deer is runs at 16 m/s and travels 400 m. It was running for this long.
What is 25 seconds?
This is the vertical velocity of a projectile when it has reached the top of its arc, and its movement switches from upwards to downwards.
What is 0?
This is the missing term in the equation for linear momentum below.
p = m [?]
What is velocity (v)?
What is gravitational potential energy?
Positive (electric field lines point away from positive charges and toward negative charges)
A car travels 200 miles, then turns around and drives 50 miles back in the direction it came. This is its net displacement from start to finish.
What is 150 miles?
[?] = 1/2 a t^2
What is displacement (change in x)?
Two objects are moving with a total momentum of 10 kg m/s. This is their total momentum after colliding.
What is 10 kg m/s? (momentum conserved)
A small meteor with a mass of 5 g is traveling at a velocity of 60,000 m/s before entering the Earth's atmosphere. What is its kinetic energy?
9 million Joules (9 MJ)
A test charge q = 0.001 C is placed in an electric field of strength 70,000 N/C. How much force does the test charge feel?
70 N
Beginning at rest, an athlete begins running with a constant acceleration (their speed is increasing with time). In the first five seconds their displacement is 15 m. How will their displacement compare in the next five seconds? (Greater than or less than first 5 seconds?)
A stone is dropped into a seemingly bottomless cavern and hits the ground 10 seconds later. How deep is the cavern?
500 meters
25 m/s to the right
I push on a block with 250 N of force, and move it 5 meters in 10 seconds. What was my power output during this time?
A plastic comb (good insulator) is used to brush Joe's hair (bad insulator). Joe then touches a doorknob, and feels a shock. During this shock, the charge picked up by his hair is neutralized. Which direction did electrons flow during the shock?
From the doorknob into Joe.
A runner is running north at a speed of 5 m/s. 50 meters ahead of him, a walker is moving north at a speed of 2.5 m/s. The runner will pass the walker at this distance from his initial position.
What is 100 meters?
A ball is dropped from the roof of a 20 meter building. It will hit the ground after this long.
A 5 kg block is moving at 5 m/s to the right when it collides with a 3 kg block and a 1 kg block. After the collision, the 5 kg block is stationary and the 3 kg block is moving at 6 m/s to the right. What is the velocity of the 1 kg block?
7 m/s to the right
A ball falls from a height of 30 meters. What is its velocity at a height of 10 meters?
20 m/s
An electric field has a magnitude of 120,000 N/C at a distance of 15 meters. What is the magnitude of the source charge?
0.003 C