What is the difference between a vector and a scalar?
A vector is a measurement of something that has more than 1 number associated with it, for example velocity. I can tell you how fast a car is going using the magnitude of velocity, speed, and I can tell you in which direction it is going. Another example is force. A force acts with a certain amount of Newton’s in some given direction. A scalar on the other hand is only associated with 1 number. An example is temperature. I can tell you what temperatures something is at and that is all I can tell you. There is no direction or other quantity involved. A second example is time.
MZ
Related Physics IB answers
All answers ▸How would I write the binary number 11001 in decimal form?
A pipe has one open and one closed end. Determine the ratio of the frequency of the first harmomic to that of the next harmonic.
When a hailstone of 0 C falls towards the earth, the kinetic energy of the hailstone is transferred to thermal energy in the ice. What is the minimum speed so that it just melts when it hits the surface. The latent heat of fusion of ice is 340 kJ/kg.
What are elastic and inelastic collisions? After a head on elastic collision of two balls of mass m1 and m2, deduce an equation relating the final and initial velocities of both balls.