AnswersLifetime Fitness semester EL2083Physical Activity and Flexibility

Physical Activity and Flexibility Answers

10 verified answers3 views
1
Free Preview

What do comets and asteroids have in common?

A
They are made of ice.
B
They orbit the Sun.
C
They are made of metal debris.
D
They are at the center of the solar system.
2
Free Preview

Which describes one way that Aristarchus's explanation of the movement of objects in the sky was different from other scientists' earlier explanations?

A
He discovered Venus’s phases.
B
He argued that Earth rotates on its axis.
C
He explained the concept of retrograde motion.
D
He described the epicycles of the planets in the sky.
3

Look at the image of the solar system.

Question illustration
A
Earth
B
Jupiter
C
Mercury
D
Neptune
4

Which idea was supported by Aristarchus, Copernicus, and Galileo?

A
The planets have epicycles.
B
The planets revolve around the Sun.
C
The stars rotate around the Sun.
D
The center of the solar system is Earth.
5

Which two gaseous giants did Renaissance scientists such as Galileo know about?

A
Jupiter and Saturn
B
Mars and Neptune
C
Neptune and Uranus
D
Uranus and Saturn
6

How did Kepler describe the planets’ orbits?

A
The planets’ orbits are circular.
B
The planets’ orbits are elliptical.
C
The planets and the Sun orbit Earth.
D
The planets have miniature orbits called epicycles.
7

Which idea did Ptolemy’s model use to explain why the planets appeared to move backward as they moved in their orbits?

A
The planets spun in epicycles.
B
The planets rotated on their axes.
C
The planets revolved around the Sun.
D
The planets were made of different materials.
8

Which correctly lists three scientists who supported the heliocentric model of the solar system?

A
Aristotle, Ptolemy, Copernicus
B
Copernicus, Ptolemy, Kepler
C
Galileo, Kepler, Aristotle
D
Kepler, Galileo, Copernicus
9

Look at the diagram of the solar system.

Question illustration
A
orbit speed
B
the phases of Venus
C
retrograde motion
D
the rising of the Sun
10

Why was it difficult for people to accept a heliocentric concept of the solar system?

A
Scientists had no way to explain retrograde motion.
B
Scientists did not check or confirm other scientists’ ideas.
C
Information was published in Italian and people could not understand it.
D
Aristotle was famous and his ideas were supported by religious teachings.
11

A lack of flexibility is a risk factor for athletic injuries.

A
T
B
F
12

According to the principle of overload you should __________.

A
gradually increase the difficulty of a workout
B
gradually decrease the difficulty of a workout
C
engage in challenging exercise during workouts
D
vary the exercises in a workout over time
13

Which of the following BEST defines dynamic stretching?

A
Dynamic stretching features slow, deliberate, controlled motions useful for activity preparation and reducing muscle tightness.
B
Dynamic stretching features bouncing and swift motion useful for increasing range of motion.
C
Dynamic stretching features stationary stretching useful for increasing muscle power and elongating muscles.
D
Dynamic stretching features stationary stretching with a partner useful for increasing muscle potential.
14

Based on the stated expectations of the sit-and-reach test, which of the following is TRUE?

A
Men are generally more flexible than women.
B
Women are generally more flexible than men.
C
Men and women are about equally flexible.
D
No broad conclusions can be drawn about flexibility.
15

What characterizes static stretching?

A
having a partner hold limbs in a stretch position
B
assuming and holding a stretch position
C
bouncing while in a stretch position
D
using a tool or object to increase a stretch
16

Which of the following activities BEST describes proprioceptive neuromuscular facilitation?

A
The stretch involves using an external object to increase muscle strength.
B
The stretch involves using a partner to apply force against your contraction.
C
The stretch involves bouncing to extend beyond the normal range of motion.
D
The stretch involves performing slow, deliberate motions to reduce muscle tightness.
17

Which stretching exercise is usually NOT recommended for most people other than professional athletes?

A
static stretching
B
dynamic stretching
C
isometric stretching
D
ballistic stretching
18

Ballistic stretching is dangerous and should NOT be performed.

A
T
B
F
19

Which of the following BEST distinguishes static from passive stretching?

A
the time positions are held
B
the risk of injury
C
the need for a partner
D
the health benefits
20

Once a body is in top physical condition, the 24-hour recovery period after low-intensity exercise can be safely skipped.

A
T
B
F

Did you find these answers helpful?

More from this Course

Quiz
15 verified answers

Physical Activity and Flexibility

Quiz
10 verified answers

Physical Activity and Flexibility

Quiz
24 verified answers

Food and Health