As an object rotates, the change in the angle is called __________ and represented by ________
Anonymous Quiz
3%
angular displacement AND s
27%
rotational displacement AND ฮธ
65%
angular displacement AND ฮธ
5%
rotational displacement AND s
What is the angular speed about the rotational axis of the Earth for a person standing on the surface?
Anonymous Quiz
5%
7.3 x 10-5 rad/s
45%
6.28 x 10-5 rad/s
35%
3.6 x 10-5 rad/s
15%
3.14 x 10-5 rad/s
โค3
A 0.30m radius automobile tire rotates how many rad after starting from rest and accelerating at a constant 2.0 rad/s2 over a 5.0 s interval?
Anonymous Quiz
33%
25 rad
33%
2 rad
33%
12.5 rad
0%
0.5 rad
โค2
A fan blade, initially at rest, rotates with a constant acceleration of 0.025 rad/s2. What is its angular speed at the instant it goes through an angular displacement of 4.2 rad?
Anonymous Quiz
21%
0.025 rad/s
47%
0.46 rad/s
21%
0.11 rad/s
11%
1.2 rad/s
She always _____ with her sister.
A. sleep
B. sleeping
C. sleeps
D. slept
Write your answer under the comment!
A. sleep
B. sleeping
C. sleeps
D. slept
Write your answer under the comment!
๐ฏ2
What is the difference between circular motion and rotational motion?
In a circular motion, the object just moves in a circle. For example, artificial satellites going around Earth at a constant height.
In rotational motion, the object rotates about an axis. For example, Earth rotating on its own axis.
@maths_group11
In a circular motion, the object just moves in a circle. For example, artificial satellites going around Earth at a constant height.
In rotational motion, the object rotates about an axis. For example, Earth rotating on its own axis.
@maths_group11
โค2๐ฏ2
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แจแดแแแซแ แปแแ แซแแฝแ? แปแแแฝแแ แแฌแแ แ แแตแแแแฅ แจแแตแณแแแซ แ แฐแชแแฝ แแญ แญแแแแค แจแปแแแฝแแ แแข แแตแซแต แแแฉแข
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https://teleads.tech
แ แตแแ แญแต (Education)แฃ แแแแ (Entertainment)แฃ แดแญแแแ (Technology) แฅแ แขแแแต (Business) แแญแ แซแ แขแตแฎแตแซแแซแ แฐแ แแแแฝแ แแแแต แญแแแแ? แ TeleAds แ แแซแแแต แ แฐแจแแแก แปแแแฝ แแญ แแตแณแแแซแแ แ แแแ แซแฐแฉแข
แจแดแแแซแ แปแแ แซแแฝแ? แปแแแฝแแ แแฌแแ แ แแตแแแแฅ แจแแตแณแแแซ แ แฐแชแแฝ แแญ แญแแแแค แจแปแแแฝแแ แแข แแตแซแต แแแฉแข
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https://teleads.tech
Which of the following is the largest part of the brain?
Anonymous Quiz
25%
Medulla oblongata
34%
Cerebellum
34%
Cerebrum
7%
Thalamus
โค2
The torque produced by the force of gravity about the center of gravity is always
zero.
zero.
Anonymous Quiz
52%
True
48%
False
The work done by the spring-mass system during one complete oscillation is equal to
Anonymous Quiz
24%
The total energy of the system
32%
Kinetic energy of the system
32%
Potential energy of the system
12%
Zero
A ball is thrown vertically upward. Neglecting air resistance, which one of the following
statements is FALSE.
statements is FALSE.
Anonymous Quiz
33%
The potential energy of the earth-ball system decreases as the ball is going up.
23%
The kinetic energy of the ball decreases while the ball is going up.
33%
The sum of the kinetic energy of the ball and potential energy of ball-earth systemis constant.
9%
The potential energy of the earth-ball system decreases as the ball is comingdown.
2%
The kinetic energy of the ball increases when the ball is coming down.
A box sits on an inclined plane without sliding. As the angle of inclination increases,
the normal force
the normal force
Anonymous Quiz
19%
increases.
46%
decreases.
10%
does not change.
8%
is directed upward.
17%
is directed in the direction of the gravitational force.
Which of the following statements accurately describes the concept of work in physics?
Anonymous Quiz
39%
Work is the transfer of energy from one object to another.
31%
Work is the application of force to move an object over a distance.
27%
Work is the displacement of an object in the presence of a force.
4%
Work is the product of an object's velocity and its mass.
A roller coaster car is at the top of a hill. As it descends, which of the following statements about the conservation of mechanical energy is true?
Anonymous Quiz
26%
ME is not conserved because the car's kinetic and potential energies change as it descends.
32%
Mechanical energy is conserved only if the car maintains a constant speed throughout the descent.
18%
Mechanical energy is conserved only if the car's mass remains constant.
24%
Mechanical energy is conserved because the car's total energy remains constant.
The law of conservation of momentum states that______.
Anonymous Quiz
6%
The momentum of any system does not change
23%
The momentum of any closed system does not change
29%
Momentum is neither created nor destroyed
43%
The momentum of any closed system with no net external force does not change
Which of the following organs is primarily responsible for nutrient absorption in the digestive system?
Anonymous Quiz
16%
Stomach
7%
Liver
69%
Small intestine
7%
Pancreas
Enzymes are function at optimum level of temprature and pH. This property refers to
Anonymous Quiz
22%
Enzyme catalysis
31%
Enzyme regulation
15%
specificity
32%
Enzyme sensetivity
โค6
Examples of conservative force:
1. Gravitational force
2. Elastic spring force
3. Electric force
Examples of non conservative force:
1. Static or kinetic frictional force
2. Air resistance
3. Tension
4. Normal force
5. Propulsion force of a rocket.
1. Gravitational force
2. Elastic spring force
3. Electric force
Examples of non conservative force:
1. Static or kinetic frictional force
2. Air resistance
3. Tension
4. Normal force
5. Propulsion force of a rocket.
โค2
Which of the following is not one of the branches of physics?
Anonymous Quiz
4%
Optics
6%
Thermodynamics
5%
Classical physics
86%
Evolution
โค3