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Eleventh Grade (Grade 11) Science Questions

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Grade 11 Nervous and Endocrine Systems
Identify the parts of the adrenal gland.
  1. superior cortex, interior cortex, and inferior cortex
  2. anterior cortex and posterior medulla
  3. adrenal cortex and adrenal medulla
  4. lateral medulla, medial medula, and sagittal medulla
Grade 11 Anatomy and Physiology
The passageway through the canal that extends to the mandibular foramen to the anterior of the mandible below the teeth is the
  1. nasal septum.
  2. median palate suture.
  3. incisive foramen.
  4. mandibular canal.
Grade 11 Skin, Skeleton, and Muscles
What hair color has the most strands of hair?
  1. brunette
  2. blond
  3. black
  4. red
Grade 11 Forces and Motion
The resultant of two perpendicular vectors is the
  1. diagonal of a rectangle constructed with the two vectors as sides.
  2. difference of the two vectors.
  3. two vectors added together.
  4. area of a rectangle constructed with the two vectors as sides.
Grade 11 Light and Optics
Which statement best explains the difference between light waves traveling through a vacuum and light waves traveling through a medium?
  1. Light waves traveling through a vacuum are transverse, but light waves traveling through a medium are longitudinal.
  2. Light waves traveling through a vacuum travel faster than light waves traveling through a medium.
  3. Light waves traveling through a vacuum have no mass, but light waves traveling through a medium have a mass greater than zero.
  4. Light waves traveling through a vacuum have a shorter wavelength than light waves traveling through a medium.
Grade 11 Skin, Skeleton, and Muscles
Which statement regarding skeletal muscle contraction is true? Select all that apply.
  1. The tension developed during the contraction of a muscle fiber is dependent upon the initial length of the fiber.
  2. There is a positive correlation between muscle-fiber length at the beginning of a contraction and the tension that can be developed by the fiber: the longer the fiber, the greater the tension.
  3. There is a positive correlation between the frequency of action potentials in a single muscle fiber and the tension it can develop: the greater the frequency, the greater the tension, up to a plateau.
  4. The tension developed during the contraction of a muscle fiber is dependent upon the initial length of the fiber, and there is a positive correlation between muscle-fiber length at the beginning of a contraction and the tension that can be developed by the fiber: the longer the fiber, the greater the tension.
  5. The tension developed during the contraction of a muscle fiber is dependent upon the initial length of the fiber, and there is a positive correlation between the frequency of action potentials in a single muscle fiber and the tension it can develop: the greater the frequency, the greater the tension, up to a plateau.
Grade 11 Skin, Skeleton, and Muscles
Which ion binds to calmodulin to ultimately activate a protein kinase? Select all that apply.
  1. sodium
  2. potassium
  3. calcium
  4. chloride
  5. magnesium
Grade 11 Skin, Skeleton, and Muscles
On an episode of CSI-NY, a killer extracts the venom from krait snakes and uses it as a poison. The venom of a krait snake contains α-bungarotoxin, which blocks the nicotinic acetylcholine receptor. The victim given the poison most likely died from
  1. malignant hyperthermia that resulted from all their skeletal muscle contracting at once.
  2. nicotine withdrawls.
  3. cardiac failure.
  4. kidney failure.
  5. paralysis of the diaphragm.
Grade 11 Environmental Science
In societies, which of the following would NOT be a good way to solve environmental problems?
  1. planning
  2. organizing
  3. considering the scientific evidence
  4. fighting each other
Grade 11 Heat Transfer
What Kelvin temperature is equal to 25°C?
  1. 248K
  2. 298K
  3. 100K
  4. 200K
Grade 11 Waves and Sound
Which of these waves are not a part of the EM spectrum?
  1. sound waves
  2. light waves
  3. X-rays
  4. Gamma rays
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