Class Notes (806,507)
Canada (492,261)
Physics (341)
PCS 181 (133)

Week 1 Lectures.docx

3 Pages
Unlock Document

Ryerson University
PCS 181
Margaret Buckby

The sceintifiic method -observation -hypothesis -experiment - conclusion -reproducibility ..........and is falsifiable................. Unit 1: the electromagnetic spectrum Astronomical information is transmitted by starrlight. Starlight Starlight->tells us-> the star’s temperature, chemical composition, motio, pressure, magenetic fields etc. Peak or Wave length crest Direct of wave motion Wavelength: distance between 2 peaks The EM Spectrum Light: mutually perpendicular oscillating electric and magnetic fields. Light: moves in a wavelike pattern at a speed of c=3x10 m/s (default meaning of lower case ‘c’ is speed of light) Tachyon: particles that moves faster than light (hasn’t been discovered) Cern: neutrenoes research topic Wavelength ‘lambda symbol’: distance between 2 peaks Tachyons: theoretical faster-than-light particles Eleltromagnetic properties Wavlength-> is color 1 nanometer=1nm= m = 1x10 m = 10 m -9 -9 -7 Lamda red= 700nm = 700x 10 m= 7x 10 m ( YOU HAVE TO KNOW THIS) Lamda violet= 400nm = 400x 10 m= 4x 10 m (YOU HAVE TO KNOW THIS) Visible: ROY G BIV Photons: bundles of energy-> lgiths as a particle White light-broken into dofferetn colour- different colour put together =white light Short wave legnth : gamma –xrays-ultraviolet White light VIBGYOR i
More Less

Related notes for PCS 181

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.