Questions and answers by

kali

Questions (608)

How did warfare change in World War I, compared to previous wars? What new technology was utilized?Explain the social reforms
1. 1 answer
2. 212 views
Matchingscrew Two inclined planes lever Inclined plane wrapped around cylinder Inclined plane Beam that pivots on fulcrum pulley
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2. 192 views
Potential energy depends on mass, gravitational pull, and ___________________ of an object.a force b height c velocity d
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2. 129 views
Kinetic energy depends on the ____________ and velocity of an object.a motion b mass c acceleration d weight
1. 1 answer
2. 96 views
A diagram is drawn showing a swing set with a swing pulled backward prior to release. The diagram shows how the swing will move
1. 1 answer
2. 181 views
The force of gravity on different planets is shown in the table below. Place the objects below in order, from smallest weight to
1. 1 answer
2. 128 views
Calculate the weight of an object with a mass of 50 kg on a planet with an acceleration due to gravity of 2.0 m/s2.a 52 N b 25 N
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2. 137 views
The strength of gravity between two objects depends on:a The volume of the object and the weight of the objects b The Mass of
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2. 174 views
A backpack full of books and an empty backpack are dropped from the same height. If there is no air resistance, which bag will
1. 1 answer
2. 130 views
Which force accounts for the difference between mass and weight?a Magnetic force b Frictional force c Gravitational force d Air
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2. 173 views
Taylor says he likes using simple machines because they do his work for him. Alicia says that simple machines only help do the
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2. 167 views
By sharpening a wedge, you _______________ the machine’s mechanical advantage.a Lose b Increase c Decrease d Do not affect
1. 1 answer
2. 156 views
Machines were invented to have a mechanical advantage, so the work output is always __________ than the work input.a greater b
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2. 158 views
Which of the following would increase the mechanical advantage of an inclined plane?a increasing the incline of the plane b
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2. 166 views
in Abc angle a is a right angle and angle b=45what is the length of bc if the answer in not an integer leave it in simplest
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2. 189 views
What is the geometric mean of the pair of numbers 99 and 11A 968 \B 33 C 43 D 38
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2. 175 views
How could you increase the mechanical advantage of the ramp below?a cover the surface of the ramp with carpet b decrease the
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2. 281 views
An electrical insulator has:a electrons tightly bound to its atoms b negatively charged ions c more protons than electrons d
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2. 177 views
Select the two variables that determine the gravitational force between two objects.a mass b magnetism c volume d density e
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2. 183 views
If you drop a rock and a bowling ball off a cliff, which one will hit the ground first if air resistance IS PRESENT?a The
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2. 235 views
A group of students were setting up their school auditorium for a rock concert to be held over the weekend.The students used a
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2. 163 views
Given the equation PE = mgh, when calculating potential energy, which of the following statements is NOT true for calculating
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2. 318 views
On which of the gas planets would you weigh the most?Planet Gravity (m/s^2) Jupiter 23.1 Saturn 9.0 Uranus 8.7 Neptune 11.0 a
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2. 217 views
Thermal energy will always transfer from the ________ object to the _________ object.a solid; liquid b coolest; hottest c
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2. 174 views
How many volts would be needed to produce a current of 8 amps in a 6 ohm resistor?a 12 volts b 1.3 volts c 48 volts d 24 volts
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2. 221 views
Tamra knows that gravitational force exists between objects that are not in contact with each other. She is investigating
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2. 358 views
If voltage remains constant in a circuit but the resistance is increased, what happens to the current?a Decrease b Change
1. 1 answer
2. 97 views
According to Coulomb's Law, the amount of electric force depends on which two things?a the mass of each of the particles and the
1. 1 answer
2. 237 views
You kick a soccer ball. When the ball reaches its highest point in the air, the ball would reach its _______________ potential
1. 1 answer
2. 246 views
Mrs. Wilson poured hot tea into a cup and stirred it with a metal spoon. After a few moments, she noticed that the sppon was
1. 1 answer
2. 307 views
Which of the following energy transformations occurs in the image below?a Electrical to Light b Chemical to Electrical c
1. 1 answer
2. 227 views
Which of the following statement is NOT true about machines?a Machines decrease the amount of work that is done. b Machines
1. 1 answer
2. 295 views
Which wave has more energy? Why?a The blue wave has more energy because it has a greater amplitude. b The red wave has more
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2. 209 views
Which best describes energy changes in a system?a Energy is conserved, and it cannot be created or destroyed. b Energy is not
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2. 150 views
Which of the following electromagnets would have the greatest magnetic field?a b c d
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2. 177 views
When two magnets' North poles are put near one another, the magnetic field will show which of the following?a repulsion lines
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2. 247 views
How many paths through which charge can flow would be shown in a circuit diagram of a series circuit?a unlimited number b none c
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2. 178 views
Which of the following statements is correct regarding the circuit below?a It is a parallel circuit, and if one bulb breaks, all
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2. 260 views
Match the gravity term to the correct example or definition.Column A 1. An open parachute has __________ air resistance than
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2. 289 views
Which materials would be the best insulators for a handle on a pot or pan that is used on the stove?a wood or rubber b copper or
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2. 268 views
Sam looks at the electromagnetic spectrum below.After evaluating the electromagnetic spectrum, Sam accurately noted that as the
1. 3 answers
2. 253 views
he image shows a straw in a glass of water.Which wave interaction BEST explains the distorted appearance of the straw in the
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2. 220 views
The table below shows Herman's mass and the mass of different planets in our solar system.If Herman were to stand on each
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2. 262 views
How is mass different than weight?a Weight is the amount of matter, and mass is the amount of matter plus gravity. b Mass is the
1. 1 answer
2. 144 views
When would a cup of hot coffee left on the counter stop transferring heat?a When it has gained all of the air's thermal energy b
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2. 323 views
What is the wavelength of an earthquake wave if it has a speed of 9000 m/s and a frequency of 12 Hz?a 108,000 m b 9012 m c
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2. 179 views
Match the following wave to the correct wave type. **You may use some answers more than once amd some not at all**Column A 1. A:
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2. 319 views
Which of the following is an example of chemical energy being transformed to mechanical energy? **Select all that apply**A
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2. 199 views
Which of the following is NOT a way you can strengthen an electromagnet?a Increasing the voltage of a battery b Using thicker
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2. 217 views
If a football player wants to become better at tackling by increasing his or her kinetic energy, what two ways can the player do
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2. 220 views
As you increase the strength of a magnet, the magnetic field _____________.a decreases b increases c changes directions d is not
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2. 147 views
Based on the arrangement of the electric field lines in the diagram, what are the charges and how are they interacting?a They
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2. 241 views
Which of the following are examples of work being done on an object? Choose the 4 that apply.This meme took a lot of WORK to
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2. 159 views
Which of the following would increase the mechanical advantage of an inclined plane?Best Inclined Plane GIFs | Gfycat a you
1. 1 answer
2. 204 views
Machines were invented to have a mechanical advantage, so the work output is always __________ than the work input.a greater b
1. 1 answer
2. 204 views
By sharpening a wedge, you _______________ the machine’s mechanical advantage.a Decrease b Do not affect c Lose d Increase
1. 1 answer
2. 153 views
Taylor says he likes using simple machines because they do his work for him. Alicia says that simple machines only help do the
1. 1 answer
2. 166 views
Which force accounts for the difference between mass and weight?a Magnetic force b Air resistance force cfrictional force
1. 1 answer
2. 123 views
Which force accounts for the difference between mass and weight?a Magnetic force b Air resistance force c Frictional force d
1. 2 answers
2. 142 views
A backpack full of books and an empty backpack are dropped from the same height. If there is no air resistance, which bag will
1. 1 answer
2. 185 views
The strength of gravity between two objects depends on:a Weight of the objects and distance between the two objects b Mass of
1. 1 answer
2. 147 views
Calculate the weight of an object with a mass of 50 kg on a planet with an acceleration due to gravity of 2.0 m/s2.a 25 N b .04
1. 1 answer
2. 192 views
The force of gravity on different planets is shown in the table below. Place the objects below in order, from smallest weight to
1. 1 answer
2. 203 views
A diagram is drawn showing a swing set with a swing pulled backward prior to release. The diagram shows how the swing will move
1. 1 answer
2. 153 views
Kinetic energy depends on the ____________ and velocity of an object.a weight b acceleration c motion d mass
1. 3 answers
2. 120 views
Potential energy depends on mass, gravitational pull, and ___________________ of an object.a height b acceleration c velocity d
1. 1 answer
2. 197 views
What is the kinetic energy of a 200 kg object that is moving at a velocity of 15 m/s?KE=1/2mv^2 a 22,500 J b 3000 J c 2150 J d
1. 1 answer
2. 107 views
What is the kinetic energy of a 200 kg object that is moving at a velocity of 15 m/s?\large KE=\frac{1}{2}mv^2 a 22,500 J b 3000
1. 2 answers
2. 154 views
What is the potential energy of an object that has a mass of 115 kg and is 6 meters high?a 676.2 J b 130.8 J c 6762 J d 1380 J
1. 5 answers
2. 119 views
Juliet wants to significantly increase the amount of kinetic energy of her bowling ball in order to increase her chances of
1. 1 answer
2. 139 views
The diagram shows the result when a student placed a magnet under a piece of paper, then sprinkled iron shavings on the paper.
1. 1 answer
2. 144 views
Which of the following will decrease the electrical force between two charges? (Select all that apply)a decreasing the size of
1. 1 answer
2. 167 views
A student places a skillet on a stove. After heating for 10 minutes, the student removes the skillet from stove. Which describes
1. 1 answer
2. 240 views
What materials will allow electricity to flow through them?a insulators b pendulums c conductors d vacuums
1. 1 answer
2. 111 views
A student holds an ice cube in her hand. Which of the following BEST describes the movement of heat that will happen?a Cold will
1. 1 answer
2. 146 views
The picture shows the solar panels that power all of the appliances in Joaquin's house.Joaquin is using his oven to bake cookies
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2. 214 views
Which of the following would be an example of an insulator?a copper wire b tin can c cooking pan d Styrofoam cooler
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2. 183 views
he pictures show four items from around the house that transform energy.Match each object with the correct type of energy
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2. 134 views
Which statement below best describes the electrical force between the two charged objects.a Object A is negatively charged and
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2. 231 views
The diagram below shows a simple electrical circuit.Which of the following would always increase the flow of current through the
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2. 203 views
Each picture shows a light bulb connected to a battery. Which bulb will light?a A b B c C d D
1. 3 answers
2. 199 views
Circuit is a parallel circuit.
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2. 86 views
Which of the following would NOT be an example of a longitudinal wave?Teacher: What is a longitudinal wave Me: - Matrix Morpheus
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2. 280 views
In a transverse wave, the medium vibratesa at right angles to wave velocity b parallel to wave velocity c in a circle around the
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2. 151 views
What is the wavelength of a 20 Hz periodic wave moving at 40 m/s?Use the equation below! a 80 m b 0.5 m c 800 m d 2 m
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2. 200 views
If the wavelength of a wave is 4 m, and the wave velocity is 8 m/s, then the frequency is _______?Use the equation below! a 2 Hz
1. 5 answers
2. 112 views
Light travels:a in bendy lines b in curves c in straight lines d around corners
1. 3 answers
2. 169 views
Refraction is:a when light is slowed down and bent by an object b when light reflects off of the surface of an object c when
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2. 134 views
The angle of reflection is:a equal to the angle of incidence b 180 degrees to the angle of incidence c opposite to the angle of
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2. 176 views
Waves are _________.a forces b matter c particles d vibrations
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2. 119 views
What do waves transfer?Transfers - Metro Transit a matter b particles c energy d vibrations
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2. 135 views
all of the following lines from eve to her daughter support the poem theme odf acceptance exceptA where adam went i was fairly
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2. 180 views
all of the following lines from eve to her daughter support the poem theme odf acceptance except
1. 1 answer
2. 161 views
identify the verb form that correctly complets the following sentencethe eletric cord to the video gaming system has almost been
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2. 119 views
Identify the incorrectly punctated sentence in the groupA She wants to buy film, and chewing gum. B They will photograph
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2. 109 views
Use context clues within the sentence to identify the definition of bold faces wordsbeacsue he wanted to play baseball so badly
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2. 209 views
Use context clues within the sentence to identify the definition of bold faces wordsi fought the crowds at the department stor
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2. 186 views
Use context clues within the sentence to identify the definition of bold faces wordsI will always tresure the heirloom quilt i
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2. 138 views
Use context clues within the sentence to identify the definition of bold faces wordsThe crrumbs around her mouth provided
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2. 142 views
Use context clues within the sentence to identify the definition of bold faces wordsThe exhusted soldier who fell asleep at his
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2. 173 views