Astoria Senior High School
6.1.3 Final Exam: Semester 1 Test
Physics Sem 1
Points Possible:100
Name:Nathan Hopkins
Date: 1/22/2021
In this test, you will apply what you have learned in the semester. Answer the questions
below. Submit this to your teacher when you are done and show all your work on the test.
Question 1 (10 points)
Perform the following unit conversions. (2 points each)
...[Show More]

**Astoria Senior High School**

**6.1.3 Final Exam: Semester 1 Test**

Physics Sem 1

Points Possible:100

Name:Nathan Hopkins

Date: 1/22/2021

In this test, you will apply what you have learned in the semester. Answer the questions

below. Submit this to your teacher when you are done and show all your work on the test.

Question 1 (10 points)

Perform the following unit conversions. (2 points each)

British to SI Conversion Table

1 mile = 5280 feet 1 yard = 3 feet

1 centimeter = 10 millimeters 1 kilogram = 1000 grams

1 kilometer = 1000 meters 1 liter = 1000 milliliters

1 meter = 100 centimeters 1 pound = 0.454 kilograms

1 foot = 0.305 meters 1 gallon = 3.79 liters

1 inch = 2.54 centimeters 1 mile = 1.61 kilometers

1 ounce = 28.35 grams 1 quart = 0.946 liters

a. Convert 18 centimeters to inches.

7.09 inches

b. Convert 240 kilograms to pounds.

529.11 pounds

c. Convert 13 miles to feet.

68,640 feet

d. Convert 18 ounces to grams.

e. Convert 234 grams to kilograms.

0.23 kilograms

Question 2 (13 points)

A diver of mass 101 kg jumps upward off a diving board and into the water. The diving board is

6 m above the water.

a. When the diver jumps, she has a speed of 1.2 m/s. How much kinetic energy does she have? (4

points)

K=1/2(101)(1.2)^2

K=72.72J

b. How much gravitational potential energy will she have gained at her highest point? Explain

how you found the answer. (3 points)

72.72 J

c. Based on the diver's speed from part (a), how high above the board will she rise? (4 points)

72.72 = 101(9.81) h

h=0.0737m so she will be 7.37cm above the initial height

d. How fast will the diver be moving when she hits the water? (2 points)

72.72 + 101(9.8)6=1/2(101) v^2

V=10.91 m/s^2

Question 3 (12 points)

At the beginning of a bobsled race, teammates push their bobsled along the track before jumping

into it.

a. Before the teammates jump in, they push the bobsled (m = 150 kg) from rest to a speed of 4.2

m/s. How much kinetic energy does the bobsled gain? (3 points)

KE=1/2 mv^2 = ½*150*4.2^2=1323J

b. How much work did the bobsled team do? Explain how you found the answer. (3 points)

Work is equal to KG so 1323J

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