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G8_SCIENCE_BSA_20_21 DOBSON, DAMIER
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Assessment started: G8_SCIENCE_BSA_20_21.
Item 1
Grade 8 Science

Session #1: Questions 1-38

1. The Herztsprung-Russell diagram shown below is used to group stars based on specific physical properties unique to each star.

Based on the diagram, which of the following describes the physical characteristics of Barnard’s Star?

hot and dim
hot and dim

cool and dim
cool and dim

hot and bright
hot and bright

cool and bright
cool and bright

Item 1
Grade 8 Science

Session #1: Questions 1-38

1. The Herztsprung-Russell diagram shown below is used to group stars based on specific physical properties unique to each star.

Based on the diagram, which of the following describes the physical characteristics of Barnard’s Star?

hot and dim
hot and dim

cool and dim
cool and dim

hot and bright
hot and bright

cool and bright
cool and bright

Answers: 3

Show answers

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Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

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