Kinematics & Dynamics
This is equivalent area under a curve for a velocity vs. time graph.
What is the displacement?
This is the rotational analog of mass for linear motion and roughly speaking it quantifies how hard it is to spin an object.
What is rotational inertia (or moment of inertia)?
The gravitational force changes by this much if you increase the distance between two planets by 3 times.
What is 1/9?
This quantity is not conserved in an inelastic collision.
What is kinetic energy?
A car traveling at 10 m/s begins to accelerate at a rate of 4m/s2 for 3 seconds. This is how far it will travel during this time.
What is 48 m?
A frictionless roller coaster that starts at height 4h will be traveling this much faster than one that starts at height h.
What is twice?
The quantity that is conserved when the shape of a spinning object changes as long as there are no external torques.
What is angular momentum?
A mass oscillating on a spring will have a zero acceleration at this point.
What is the equilibrium position?
A cannon launches a ball. Compared to the force on the ball, the force on the cannon is
What is the same?
A ball is thrown horizontally. The horizontal acceleration of the ball while it is in flight is...
What is zero?
A cart moves along a frictionless track. If the net work done on the cart is negative, what is happening to the cart’s speed?
What is decreasing?
The relationship between torque and angular acceleration?
What is torque = I * alpha?
The ratio of the force the Earth exerts on the moon to the force the moon exerts on the Earth.
What is one?
A block of mass 2.5 kg is pushed to the right a distance 2.2 m along a frictionless horizontal table by a pushing force 16 N directed at an angle 25 degrees below the horizontal to the right. Is the work done by the pushing force positive, negative, or zero?
What is positive?
The principle of physics that states forces always come in pairs that are equal in magnitude and opposite in direction.
What is Newton's Third Law?
This quantity is found by taking the area under a force versus time graph and is equal to the change in momentum.
What is Impulse (J)?
The best angle (relative to the lever arm) to maximize the torque produced by a force.
What is 90 degrees?
The net force for an object of mass m on an incline with friction.
What is F = mg(sin(theta) - cos(theta))
Car A with mass 1000 kg initially travels to the east with speed 40 m/s. Car B initially travels to the west with speed 30 m/s. After the vehicles collide, they move together to the west with common speed 20 m/s.Is the mass of car B greater than, less than, or equal to the mass of car A?
What is greater than?
A block of mass m is pushed against a spring (constant k) and released. If you double the compression distance Δx, by what factor does the maximum acceleration of the block increase?
What is a factor of 2?
A 10 kg mass is released from rest and loses 200 J of energy. Its change in height is this.
What is 2 m?
A sphere and a hoop of equal mass are released from rest at the top of an incline. This one will reach the bottom faster.
What is sphere?
The normal force on a 10 kg block on a horizontal surface that has a string pulling straight up on it with a tension of 48 N.
What is 50 N? (or 52 N if you used 10 instead of 9.8)
Two identical balls, A and B, hit a wall with the same speed v. Ball A hits the wall head-on and bounces back with the same speed. Ball B hits the wall at a 45 degree angle and bounces off at a 45 degree angle with the same speed. Which ball experienced a greater magnitude of impulse from the wall?
What is Ball A?