Download Work units - ANS_Joule/ work is a scalar Power (p) - ANS_The work done in a given time Pow and more Exams Physics in PDF only on Docsity!
Work (w) - ANS_The application of a force along a displacement.
Work units - ANS_Joule/ work is a scalar
Power (p) - ANS_The work done in a given time
Power unit - ANS_Watts (w)/ is a scalar
Energy (E) - ANS_the ability to do work
Energy unit - ANS_Joules (J) scalar
Kinetic Energy - ANS_Energy of motion
Potential energy - ANS_energy at rest, stored energy or energy of position
Gravitational potential energy - ANS_Pe=mgh (for pendulum Pe=mg(1-sinx)
Electromagnetic potential energy - ANS_Pe=1/2kx^
Heat - ANS_1.Total random kinetic energy of all the particles in an object
2.infrared radiation
- A change in the internal energy of the system
Light - ANS_A transverse non mechanical electromagnetic wave
Mass - ANS_Matter and energy are interchangeable
Momentum (p) - ANS_A physical quantity that depends on an objects mass and velocity
Momentum unit - ANS_Kgm/s -is a vector
Impulse - ANS_A change in momentum (newton 2nd law)
Conservation of momentum - ANS_Momentum is conserved in the absence of external forces (newton 3rd law)
Elastic collision - ANS_When 2 or more objects collide and bounce off
Inelastic collisions - ANS_When 2 or more objects collide and stay together
Explosion - ANS_When one object becomes many
