What term describes an educated guess about what the answer to a question might be
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Definition1/18
hypothesis A hypothesis.
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Term1/18
A 45.0 kg skater is skating at a speed of 12.0 ms The skater coasts to a speed of 6.00 ms How much kinetic energy has the skater lost
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Definition1/18
2430
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Term1/18
The custom of watching fireworks on the Fourth of July would be studied by this social science
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Definition1/18
a- Anthropology
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Term1/18
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
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Definition1/18
4.6ms
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Term1/18
A bicycle is an example of what machine
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Definition1/18
A bicycle is an example of a complex machine, consisting of interacting simple machines.
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Term1/18
Which of these rates is slowest 1760 yardsminute 60 mihr or 88 ftsec
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Definition1/18
When you convert it, you will find out that they're all the
same.
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Term1/18
A 14 kg cart is coasting down a street at a steady speed of 7 ms what is the kinetic energy of the cart
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Definition1/18
Kinetic energy = 1/2 M V2 = 0.5 x 14 x 49 = 343 joules
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Term1/18
The tangent of an angle equals the ratio of the
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Definition1/18
Sine of the angle to its cosine.
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Term1/18
A 10 kg object is lifted up 10 meters How much potential energy has the object gained
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Definition1/18
1,000
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Term1/18
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall
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Definition1/18
4900
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Term1/18
Look at the pie graph pictured How many students ate in the cafeteria
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Definition1/18
125
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Term1/18
A ramp is 30 meters long and 5 meters high 200 newtons of force must be applied by the mover to push a 1000 newton piano up the ramp
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Definition1/18
What is the amount of work accomplished by the ramp? - 5000
joules
What is the amount of work done by the mover? - 6000 joules
What is the efficiency of the ramp? - 83%
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Term1/18
How much heat energy would it take to melt a 20 kg block of lead that was at 24 degrees Celsius
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Definition1/18
1,277,800 j
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Term1/18
A 50 kg cannon ball is shot horizontally from a cannon at a speed of 80 ms At this speed its kinetic energy will be joules
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Definition1/18
Kinetic Energy = 1/2 M V2 = (25) (80)2 = 160,000joules.
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Term1/18
This term is the center of interest for an artwork
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Definition1/18
Focal Point for my A+ buddies ;p
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Term1/18
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
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Definition1/18
250 newtons
A+ Answers
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Term1/18
What type of measurement is this 12 feet up scalar or vector
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Definition1/18
A scalar has distance but no direction.
A vector has distance and direction.
"12 feet up" has distance (12 feet) and direction (up), so is a
vector.
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Term1/18
What of these is always part of using the scientific method
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Definition1/18
A question about an observation
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Cards in this guide (18)
What term describes an educated guess about what the answer to a question might be
hypothesis A hypothesis.
A 45.0 kg skater is skating at a speed of 12.0 ms The skater coasts to a speed of 6.00 ms How much kinetic energy has the skater lost
2430
The custom of watching fireworks on the Fourth of July would be studied by this social science
a- Anthropology
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
4.6ms
A bicycle is an example of what machine
A bicycle is an example of a complex machine, consisting of interacting simple machines.
Which of these rates is slowest 1760 yardsminute 60 mihr or 88 ftsec
When you convert it, you will find out that they're all the
same.
A 14 kg cart is coasting down a street at a steady speed of 7 ms what is the kinetic energy of the cart
Kinetic energy = 1/2 M V2 = 0.5 x 14 x 49 = 343 joules
The tangent of an angle equals the ratio of the
Sine of the angle to its cosine.
A 10 kg object is lifted up 10 meters How much potential energy has the object gained
1,000
A rock weighing 98 newtons is pushed off the edge of a bridge 50 meters above the ground What was the potential energy of the rock before it began to fall
4900
Look at the pie graph pictured How many students ate in the cafeteria
125
A ramp is 30 meters long and 5 meters high 200 newtons of force must be applied by the mover to push a 1000 newton piano up the ramp
What is the amount of work accomplished by the ramp? - 5000
joules
What is the amount of work done by the mover? - 6000 joules
What is the efficiency of the ramp? - 83%
How much heat energy would it take to melt a 20 kg block of lead that was at 24 degrees Celsius
1,277,800 j
A 50 kg cannon ball is shot horizontally from a cannon at a speed of 80 ms At this speed its kinetic energy will be joules
Kinetic Energy = 1/2 M V2 = (25) (80)2 = 160,000joules.
This term is the center of interest for an artwork
Focal Point for my A+ buddies ;p
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor To lift the engine fi
250 newtons
A+ Answers
What type of measurement is this 12 feet up scalar or vector
A scalar has distance but no direction.
A vector has distance and direction.
"12 feet up" has distance (12 feet) and direction (up), so is a
vector.
What of these is always part of using the scientific method
What term describes an educated guess about what the answer to a question might be
Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
A 45.0 kg skater is skating at a speed of 12.0 ms The skater coasts to a speed of 6.00 ms How much kinetic energy has the skater lost
The custom of watching fireworks on the Fourth of July would be studied by this social science
What term describes an educated guess about what the answer to a question might be
The custom of watching fireworks on the Fourth of July would be studied by this social science
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
Which of these rates is slowest 1760 yardsminute 60 mihr or 88 ftsec
What term describes an educated guess about what the answer to a question might be
A 45.0 kg skater is skating at a speed of 12.0 ms The skater coasts to a speed of 6.00 ms How much kinetic energy has the skater lost
The custom of watching fireworks on the Fourth of July would be studied by this social science
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
What term describes an educated guess about what the answer to a question might be
Four students are moving 80 N boxes from the floor to a shelf 4 meters high Student A moves 8 boxes in 10 minutes Student B moves 6 boxes in 8 minutes Student C moves 4 boxes in 6 minutes and st
The custom of watching fireworks on the Fourth of July would be studied by this social science
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
What term describes an educated guess about what the answer to a question might be
The custom of watching fireworks on the Fourth of July would be studied by this social science
A jogger runs at an average speed of 5 ms for 3 minutes then finishes with an average speed of 4 ms for 2 minutes What is his average speed in ms for the run
Which of these rates is slowest 1760 yardsminute 60 mihr or 88 ftsec