Projectiles
A projectile's vertical velocity will change by this much every second (ignoring air resistance).
What is 10 m/s?
The force of gravity varies based on an object's mass, but the ________ this causes is always the same.
What is acceleration?
When landing from a jump, bending your knees will increase the time and decrease the _____ on your body.
What is "Force"?
This is the angle which will maximize the range of a projectile for a given starting velocity.
What is 45 degrees?
This is the name for an object's resistance to change in motion.
What is inertia?
A projectile's horizontal velocity will change by this much every second (ignoring air resistance).
What is 0 m/s?
The acceleration of a half-weight baseball will be ______ as much as a regular-weight one, for a given force.
When trying to hit a sportsball with a lot of momentum, you should follow-through to increase the _______.
What is "time"?
What is 65 degrees?
If someone tries Forcefully to convince you of something, increasing this will help to lower the Pressure.
What is Area?
This is the reason why the trajectory of a piece of paper doesn't match very well with projectile motion.
What is air resistance?
If a spring-loaded mechanism sends two cars flying apart, the force acting on the heavier car will be _______ that of the lighter car.
What is "equal to" (and opposite)?
When comparing a 100 kg person rolling down a hill at 5 m/s and a 0.1 kg bullet fired at 1,200 m/s, this is the object with more momentum.
What is the person?
This is the angle between a surface and the direction of the supporting force it exerts on objects which rest on it.
What is 90 degrees?
When a free-falling object's velocity stops changing, these two forces are in equilibrium.
What are gravity (weight) and air resistance?
When comparing the vertical and horizontal components of motion, the velocity and distance will usually be different, but this quantity will always be the same.
What is time?
The force you exert on Earth is equal to the force it exerts on you, but it doesn't move because its ______ is much larger than yours.
What is "mass"?
If you want to know the total momentum of a system, you need to consider both the magnitude and _______ of all the objects' momenta.
What is direction?
This is the angle between the direction of an object's motion and any frictional forces acting on it.
What is 180 degrees?
What is "internal"?
This is the time in seconds it will take a projectile launched perfectly horizontally to fall 5 feet.
What is one second?
This is the difference between the number of laws Newton established and the number of laws (Mitzvot) in the Torah.
What is 610?
True or false: applying a force to your car's dashboard will change the momentum of the you-car system?
What is "false"?
Geometry attack: these are the angles in the sides of a right isosceles triangle.
What are 45 degrees (and 45 degrees)?
True or False: Mr. Horstman prefers it when you cooperate with his efforts to change the way you think about the physical world.
What is True!?