Motion, Forces, and Energy: Physical Quantities and Measurement Techniques

Scalar quantity has magnitude only, whereas vector quantity has magnitude and direction.

By measuring multiples, including the period of oscillation of a pendulum.

Time intervals can be measured using clocks and digital timers.

<p>Distance, speed, time, mass, energy, and temperature.</p> Signup and view all the answers

<p>Yes, the resultant of vectors at right angles can be determined. These vectors are limited to forces or velocities only.</p> Signup and view all the answers

<p>Speed is defined as distance travelled per unit time. The equation to calculate speed is v = s/t.</p> Signup and view all the answers

<p>The equation to calculate average speed is average speed = total distance travelled / total time taken.</p> Signup and view all the answers

<p>You can determine when an object is accelerating if the distance-time graph is curved (not a straight line).</p> Signup and view all the answers

<p>Acceleration is defined as change in velocity per unit time. The equation to calculate acceleration is a = ∆v/∆t.</p> Signup and view all the answers

<p>Density is defined as mass per unit volume. The equation to calculate density is ρ = m/V.</p> Signup and view all the answers