Show:
Kinematics/Projectiles
Forces
Energy
Circular Motion
Momentum/Gravity
100
A change in speed or direction; a vector quantity.
What is acceleration?
100
Every object will remain in its state of motion until it is acted on by a net force.
What is Newton's First Law?
100
The SI unit for power.
What is the Watt?
100
Towards the center of the circle.
In what direction does the centripetal acceleration/force point?
100
Product of the mass and its velocity; a vector value that is always conserved.
What is momentum?
200
The slope of the velocity vs time graph.
What is acceleration?
200
For every force, there is an equal and opposite force.
What is Newton's Third Law?
200
The amount of energy in an isolated system is constant.
What is conservation of energy?
200
The equation for torque.
What is the force times the lever arm times the sine of the angle between the two?
200
The change in an object's momentum.
What is the impulse?
300
If a ball is thrown horizontally off a cliff of height 65 m, what is its initial vertical velocity?
0 m/s
300
A property which causes objects to remain in their current state of motion; directly tied to mass.
What is inertia?
300
The energy based off of an objects height from the center of the Earth.
What is gravitational potential energy?
300
The force that keeps an object moving in a circle.
What is the centripetal force?
300
The equation for Newton's Law of Universal Gravitation.
What the gravity constant (G) times the product of the masses, divided by the distance between them squared.
400
The area under the curve in a velocity vs time graph.
What is the displacement?
400
The ratio of the friction force and the normal force when an object is on a surface.
What is the coefficient of friction?
400
The amount of energy pumped into or out of a closed system.
What is the work?
400
When an object has no net torque.
What is rotational equilibrium?
400
Kinetic energy is conserved in this type of collision.
What is a perfectly elastic collision?
500
A ball is dropped a distance of 50 m. How long did it take to hit the ground?
3.193 seconds
500
A cart with a weight of 1000 N is accelerated across a level surface at 1.5 m/s^2. What is the net force on the cart?
152.91 N
500
A car of mass 550 kg rolls up a very large hill, initially moving at 25 m/s. How high up does the car go?
31.86 m
500
A person on a bike has a mass of 95 kg is going in a circle with radius 20 m. If the speed is 9 m/s, what is the centripetal force?
384.75 N
500
The square of the orbital period of a satellite is proportional to the cube of the average distance from its central mass.
What is Kepler's Third Law?