Revving Up for TAKS Relay Races
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1 UNDER CONSTRUCTION Answer Key: km/h From TAKS Information Guide Grade cm From TAKS Information Guide Grade g/ml From Grade 10 TAKS From Grade 10 TAKS From Grade 10 TAKS From Grade 10 TAKS From Grade 10 TAKS From Grade 10 TAKS From Grade 11 TAKS July From Grade 11 TAKS July From Grade 11 TAKS July From Grade 11 TAKS July From Grade 11 TAKS July From Grade 10 TAKS Spring From Grade 10 TAKS Spring From Grade 10 TAKS Spring From Grade 10 TAKS Spring From Grade 10 TAKS Spring From Grade 10 TAKS Spring From Grade 10 TAKS Spring From Grade 11 TAKS Spring From Grade 10 TAKS Spring From Grade 11 TAKS Spring From Grade 11 TAKS Spring From Grade 11 TAKS Spring From Grade 11 TAKS Spring From Grade 11 TAKS December From Grade 11 TAKS December From Grade 11 TAKS December From Grade 11 TAKS October From Grade 11 TAKS October From Grade 11 TAKS October From Grade 11 TAKS October 2005 Page 1
2 1 What is the average speed of a jet plane that flies 8000 kilometers in 8.5 hours? Page 2
3 2 What would be the wavelength in centimeters of this wave if its frequency were doubled? Page 3
4 3 The picture shows a cube that contains 20 ml of a solution. The solution has a mass of 40 grams. What is the density of this solution? Page 4
5 4 How much force is needed to accelerate a 1,300 kg car at a rate of 1.5 m/s 2? Page 5
6 5 A car traveled 150 km in 2.5 hours. What was its average speed? Page 6
7 6 What is the density at 20 C of 12.0 milliliters of a liquid that has a mass of 4.05 grams? Page 7
8 7 At 0 C sound travels through air at a speed of 330 m/s. If a sound wave is produced with a wavelength of 0.10 m, what is the wave s frequency? Page 8
9 8 What is the current in a copper wire that has a resistance of 2 ohms and is connected to a 9 volt electrical source? Page 9
10 What is the velocity of the wave? 9 Page 10
11 10 What is the efficiency of an air conditioner if there is a work input of 320 J and a work output of 80 J? Page 11
12 11 How many newtons of force does a 50.0 kg deer exert on the ground because of gravity? Page 12
13 12 A mechanic used a hydraulic lift to raise a 12,054 N car 1.89 m above the floor of a garage. It took 4.75 s to raise the car. What was the power output of the lift? Page 13
14 13 According to the graph what was the bicycles acceleration between 6 and 10 seconds? Page 14
15 14 Observing an approaching thunderstorm and using a stopwatch, a student finds that it takes 8.40 seconds for thunder to be heard after a lightning bolt strikes. The student has learned that it takes 3.0 seconds for sound to travel 1000 m. How far away is the storm? Page 15
16 15 A 60 kg person is riding a bike at 25 km/h. What is their momentum? Page 16
17 16 What is the mass of a ml sample of seawater with a density of g/ml? Page 17
18 17 An ant crawled from Point A to Point B in 4.0 seconds. To the nearest tenth, what was the ant s speed in centimeters per second? A B Page 18
19 18 From 1942 to 1945, U.S. nickels were made of an alloy that contained 35% silver, 9.0% manganese, and the rest copper, by mass. If one of these nickels has a mass of 5.0 grams, what is the mass of the copper? Page 19
20 19 What is the density of the object shown? Page 20
21 20 How much current is flowing through this circuit? Page 21
22 21 A ball moving at 30 m/s has a momentum of 15 kg m/s. The mass of the ball is Page 22
23 Diagram for 22 Page 23
24 22 Use the diagram provided. A cold front moves from Abilene to College Station in 6.0 hours. What is its average speed in km/h? Page 24
25 Diagram for 23 Page 25
26 23 Use the diagram provided. The picture shows the position of a ball every 0.25 second on a photogram. Using a ruler, determine the velocity of the ball. Page 26
27 Diagram for 24 Page 27
28 24 Use the diagram provided. What is the potential energy of the rock? Page 28
29 Diagram for 25. Page 29
30 25 Use the diagram provided. How much work is performed when a 50 kg crate is pushed 15 m with a force of 20 N? Page 30
31 Diagram for 26. Page 31
32 26 The diagram shows an electric motor lifting a 6 N block. The total amount of electrical energy used by the motor is 30 J. How much energy does the motor convert to heat? Page 32
33 Diagram for 27. Page 33
34 27 Use the diagram provided. Starting from rest at the center of a skating rink, two skaters push off from each other over a time period of 1.2 s. What is the force of the push by the smaller skater? Page 34
35 Diagram for problem 28. Page 35
36 28 Use the diagram provided. What is the approximate difference in gravitational potential energy of the two shaded boxes? Page 36
37 29 A cyclist moves at a constant speed of 5 m/s. If the cyclist does not accelerate during the next 20 seconds, how far will he travel? Page 37
38 30 A 500 ml quantity of vanilla ice cream has a mass of 400 grams. The manufacturer then bubbles air into the ice cream so that its volume increases by 300 ml. What is the ice cream s approximate final density? Page 38
39 31 The speed of sound in human tissue is about 1600 m/s. If an ultrasound pulse takes s to travel through a tissue, what is the thickness of the tissue? Page 39
40 32 A kg ball with a speed of 4.0 m/s strikes a stationary 1.0 kg target. If momentum is conserved, what is the total momentum of the ball and target after the collision? Page 40
41 33 The table contains data for two wrecking balls being used to demolish a building. What is the difference in momentum between the two wrecking balls? Page 41
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