Shopping Review and Quiz Answers

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Gabriel is performing an experiment in which he is measuring the energy and work being done by a ball rolling down a hill. Which statement best describes Gabriel’s measurements?

A
They will remain constant.
B
They will both be recorded in joules.
C
They will both be recorded in hertz.
D
They will involve compressions.
87

Position B:[___]

A
is all kinetic
B
is all potential
C
is losing kinetic and gaining potential
D
is losing potential and gaining kinetic
89

Ella has a mass of 56 kg, and Tyrone has a mass of 68 kg. Ella is standing at the top of a skateboard ramp that is 1.5 meters tall. Which conclusion is best supported by the given information?

A
If Tyrone stands at the top of the same ramp, his potential energy will be less than Ella’s.
B
If Tyrone stands at the top of a 1 m high ramp, his potential energy will be greater than Ella’s.
C
If Tyrone stands at the top of the same ramp, his potential energy will be the same as Ella’s.
D
If Tyrone stands at the top of a 2 m high ramp, his potential energy will be greater than Ella’s.
90

What did you include in your question? Check all that apply.

A
investigates the effect of mass
B
examines the impact of speed or velocity
C
inquires about more than one factor
91

What did you include in your hypothesis? Check all that apply.

A
The mass of the object can be changed.
B
The kinetic energy will be measured.
C
Analysis can include using a graph.
92

What did you include in your hypothesis? Check all that apply.

A
The speed of the object can be changed.
B
The kinetic energy will be measured.
C
Analysis can include using a graph.
95

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

A
A toy company specializes in stuffed toys. The company decides to produce a stuffed turkey in a Pilgrim’s outfit in the months leading up to Thanksgiving.
B
A farmer normally plants soybeans, which require a lot of water. Because the farm is in an area experiencing a drought, the farmer decides to plant chickpeas, which require much less water.
C
A company makes plastic flamingos for lawns. An internet meme using its plastic flamingos causes an increased demand for the product. The company increases production.
D
A company creates garden supplies. In preparation for the spring and summer months, the company increases its production of garden hoses and sprinklers.
96

Hunter’s velocity was 4.5 m/s. At the end of his race, his velocity was the same. Which best describes his movement?

A
His movement stopped.
B
His acceleration is zero.
C
His time was constant.
D
His acceleration was positive.
98

Tina and her puppy are tugging on a rope, each pulling on opposite ends.When is Tina doing work?

A
the entire time she plays with the puppy
B
whenever she pulls the puppy toward her
C
when she holds the rope steady as the puppy pulls it
D
when she lets go of the rope and the puppy pulls it away
99

shelf C [___]

A
stays the same
B
increases
C
decreases
100

Four people make observations recorded in the table.Which best describes what the observations have in common?

Question illustration
A
They involve nuclear energy.
B
They involve radiant energy.
C
They involve changes in waves.
D
They involve changes in energy.

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