Linear and Circular Motion Quiz

<p>Kelvin (C)</p> Signup and view all the answers

<p>Mole (A)</p> Signup and view all the answers

<p>Candela (A)</p> Signup and view all the answers

<p>2.54 cm (B)</p> Signup and view all the answers

<p>30.48 cm (A)</p> Signup and view all the answers

<p>39.37 in (B)</p> Signup and view all the answers

<p>3.281 ft (D)</p> Signup and view all the answers

<p>9.461 x 10^15 m (D)</p> Signup and view all the answers

<p>Peta (A)</p> Signup and view all the answers

<p>how closely the measured value corresponds to the true value</p> Signup and view all the answers

<p>how closely the results of multiple measurements taken with the same instrument agree with each other</p> Signup and view all the answers

<p>the smallest change in value that the instrument can detect or display</p> Signup and view all the answers

<p>Position is the location of an object in space with respect to a reference point.</p> Signup and view all the answers

<p>Displacement is the change in position of an object.</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>$\frac{\Delta x}{\Delta t} = \frac{x_f - x_i}{t_f - t_i}$</p> Signup and view all the answers

<p>$v_x = \lim_{\Delta t \to 0} \frac{\Delta x}{\Delta t}$</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>$a_{av,x} = \frac{\Delta v_x}{\Delta t}$</p> Signup and view all the answers

<p>$a_x = \lim_{\Delta t \to 0} \frac{\Delta v_x}{\Delta t}$</p> Signup and view all the answers

<p>Counterclockwise</p> Signup and view all the answers

<p>$\Delta \theta = \theta_f - \theta_i $</p> Signup and view all the answers

<p>$\omega_{av} = \frac{\Delta \theta}{\Delta t}$</p> Signup and view all the answers

<p>$\omega = \lim_{\Delta t \to 0} \frac{\Delta \theta}{\Delta t}$</p> Signup and view all the answers

<p>$\theta \text{ (in radians)} = \frac{s}{r}$</p> Signup and view all the answers

<p>$s = r|\Delta\theta| = r|\theta_f - \theta_i|$</p> Signup and view all the answers

<p>$v = r|\omega|$</p> Signup and view all the answers

<p>$|\omega| = \frac{v}{r} = \frac{2\pi}{T} = 2\pi f$</p> Signup and view all the answers

A standardized way of measuring physical quantities.

Basic measurements like meters, kilograms, and seconds.

Ratios used to convert one unit to another.

Prefixes that modify units, such as kilo- or milli-.

How close a measurement is to the true value.

The consistency of repeated measurements.

The smallest change an instrument can detect.

The location of an object relative to a reference point.

Displacement is the straight line from start to end, distance is the total path.

Rate of change of position; includes direction.

Rate of change of velocity over time.

Velocity at a specific instant.

Motion around an axis; uses angles.

Change in angle in circular motion.

SI unit for angles; one radian equals 57.3 degrees.

Linear velocity describes straight distance; angular velocity describes rotational speed.

Number of cycles per unit time; the inverse of period.

Time taken for one complete cycle.

A device that spins to separate substances by density.

Apparent force that pushes objects outward in a circular path.

Process where substances separate based on their density.

Distance along the circumference of a circle.

Force that keeps an object moving in a circular path.

A technique to check units in equations.

Equations that relate displacement, velocity, acceleration, and time.

Three laws describing motion and forces.

Product of an object's mass and velocity.

Change in momentum due to a force applied over time.

Motion under the influence of gravity alone.

Force opposing motion between two surfaces in contact.