Answers FL-0708340-Spanish 1 LMSShopping Part 3

Shopping Review and Quiz Answers

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When discussing Newton’s laws of motion, which terms do people most likely use when talking about Newton’s third law of motion?

“force” and “acceleration”

“inertia” and “force”

“action” and “reaction”

“mass” and “inertia”

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An eagle carries a fish up 50 m into the sky using 90 N of force. How much work did the eagle do on the fish? (Work: W = Fd)

40 J

59 J

140 J

4500 J

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Shondra takes notes in class.

Switch "the energy of moving objects" and "the ability to do work" and place chemical energy under "Forms of energy."

Switch "the energy of flowing electrical charges" and "the energy in a spring" and place kinetic energy under "Forms of energy."

Switch "the energy in the nuclei of atoms" and "the energy stored in objects'" and place nuclear energy under "Main categories of energy."

Switch "the energy from the Sun" and "the energy of a rock on a hill" and place electrical energy under "Main categories of energy."

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Let's consider a scenario of a roller coaster ride. As the roller coaster at the top begins to descend, it loses height, which means its potential energy decreases and kinetic energy starts increasing and reaches its maximum value.By using the above scenario, which statement best compares potential and kinetic energy?

Objects always have more potential energy than kinetic energy.

Kinetic energy increases and potential energy decreases when the velocity of an object increases.

Only potential energy decreases when an object’s height increases.

Objects always have more kinetic energy than potential energy.

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Which scenario best describes how scarcity affects a producer’s decision about who to produce for?

Several popular sites on the internet have featured products made with a particular kind of bead. The popularity of the products has led to a shortage of these beads. Tons of Beads uses the same beads to make beaded jackets and shoes. The shortage has forced the company to switch to a new kind of bead.

High demand and delays in production due to poor weather conditions have driven up the cost of oil. Acme uses oil-based products in its manufacturing. As a result, the company has had to raise prices on many of its products. This has resulted in some customers being forced to stop buying the products.

The economy has declined, with many people out of work. The very wealthy, however, have been doing well through the downturn. A jewelry company decides to produce a new line of expensive jewelry.

It was a very good year for growing apples. As a result, grocery stores have lots of apples to sell. Stores have lowered their prices on apples to attract customers. This has led to a sizeable increase in apple sales.

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The chart lists the masses and velocities of four objects.

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Force and distance are used to calculate work. Work is measured in which unit?

joules

watts

newtons

meters

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When Anna eats an apple, the sugars in that apple are broken down into the substance called glucose. Glucose is then burned in her body for energy. One of the body parts that needs this energy is the heart, which beats due to electrical impulses. A byproduct of this glucose breakdown is the heat that warms her body and is later released.

Mechanical energy is converted to kinetic energy, which is then converted to potential energy.

Chemical energy is converted to thermal energy and electrical energy.

Electrical energy is converted to chemical energy and thermal energy.

Mechanical energy is converted to potential energy which is then converted to kinetic energy.

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Olivia is on a swing at the playground.

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Which resource is nonrenewable?

coal

crops

trees

water

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Which does a reference point provide?

a position from which to measure future distance

a set of standard units for measuring displacement

a standard method for evaluating variables

a method for determining the speed of an object

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Joshua programs a robotic arm to place a block in a box by following the sequence of commands in the table.During which step does the robotic arm do work on the block?

Step 1

Step 2

Step 3

Step 4

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Atoms contain subatomic particles called protons and neutrons. When these protons and neutrons split, a lot of energy is released.

nuclear

radiant

thermal

chemical

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This diagram shows a skier moving down a hill.

The skier has potential and kinetic energy.

The skier has only potential energy.

The skier has only kinetic energy.

The skier does not have potential or kinetic energy.

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What is one effect of scarcity?

Scarcity increases the value of a resource.

Scarcity decreases the value of a resource.

Scarcity does not affect the value of a resource.

Scarcity raises, then lowers, the value of a resource.

136

Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. His car was 20 meters from the starting line. This took 5 seconds.What is the car’s average velocity?

4 m/s east

4 m/s west

12 m/s west

12 m/s east

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Awanita is placing items on a shelf that is 200 cm above the ground. She exerts a force of 20 N to lift a box from the floor to the shelf. She does this in 5 s.What is Awanita’s power output? (Power: P = W/t)

4 W

8 W

40 W

800 W

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What is the energy of an object because of its potential and kinetic energies?

chemical energy

electrical energy

nuclear energy

mechanical energy

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A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller coaster? (Formula: PE = mgh)

800 kg

7,840 kg

8,000 kg

78,400 kg

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The photograph shows the inside of a factory.

land

labor

capital

entrepreneurship

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