Unit Test: Astronomy Mid-Unit Test - Part 1

When is it summer in the Northern Hemisphere?

when the Northern Hemisphere is closest to the sun
when neither pole is receiving the most direct sunlight
during an equinox
when the Northern Hemisphere is tilted toward the sun

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness

What is the work done by the electric force to move a 1 c charge from a to b?

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box