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What is the name for the phenomena that occurs when the moon passes between the Earth and the sun, casting a shadow on the Earth.

Which two quantities must you know in order to place a data point for a star on an H-R diagram?

Which astronomer collected a lot of data on the position of the planets that helped Kepler to derive his three laws?

An astronaut in space swings a ball attached to a string in a circular motion. If the string suddenly breaks, how will the ball move?

What is the definition of astronomy I gave you at the start of the course?

Which of the following best describes how and why x-ray telescopes differ from visible light telescopes?

If your mass is 60 kilograms on Earth, what would your mass be on the Moon?

This is for practice accessing webassign for your test. Copy the password then select the link below. It will open in a new window. password: practicewebassign New Practice webassign test Keep your Canvas tab open so you can return to cabvas after you complete the questions in webassign.  Once you submit your answers in webassign, click on the back arrow to get back to this page.  Press submit to end the remote monitoring.

Why is masking needed?

Click on the letter that corresponds to the pubic symphesis.