PHYS 1010 - Exam 1 2025 with correct answers

PHYS 1010 - Exam 1 2025 with correct answers 3 ways to change velocity - ANSWER-1- changing speed 2- changing the direction 3- changing the direction AND speed .acceleration - ANSWER-increase in the rate or speed of something; basically how quickly velocity changes (change in speed, acceleration, direction) .angular momentum - ANSWER-the quantity of rotation of a body, which is the product of its moment of inertia and its angular velocity .center of gravity (center of mass) - ANSWER-the point at which the entire weight of an object seems to act .combined motion - ANSWER-motion that takes place around a fixed axis while it changes the position .conservation of angular momentum theorem - ANSWER-will remain constant if no external net torque acts on a rotating system .conservation of energy theorem - ANSWER-total energy of an isolated system remains constant--it is said to be conserved over time .conservation of momentum theorem - ANSWER-'when the net force on any object or group of objects is zero, the total momentum remains constant' .consistent with newton's 3rd law, what 4 conditions do all forces satisfy? - ANSWER-properties of forces (always true) - occur in pairs - equal in strength - opposite in direction - two different objects .does g depend on the mass of the object? - ANSWER-no, it determines the force, not the acceleration .does g depend on the motion of the object? - ANSWER-no, the motion of the object does not effect the acceleration *acceleration is not the same as velocity *acceleration is constant and downward .energy - ANSWER-the capability to do work; when work is done, energy is transferred