Question 1

A bat uses echolocation to identify objects. A bat is traveling to west emits a sound (also heading towards

the west) to a stationary object. Which of the following is most accurate in regards to the Doppler effect?

Options :

A :

Frequency will be the same.

B :

Frequency will be higher than the originally emitted one.

C : Frequency will be lower than the originally emitted one.

D : Frequency will not return.

E : Cannot determine

Answer: B

Question 2

Rank the following in the correct order of increasing wavelength:

Options :

A : X-rays, Gamma rays, Visible light, Radio waves, UV

B : Gamma rays, X-rays, Infrared, UV, Radio waves

C : Radio waves, Infrared, UV, X-rays, Gamma rays

D : X-rays, Gamma rays, UV, Infrared, Radio waves

E : Gamma rays, X-rays, UV, Infrared, Radio waves

Answer: A

Question 3

Which of the following is the largest organelle in an animal cell?

Options :

A : Mitochondrion

B : Chloroplast

C : Nucleus

D : Vacuole

E : Golgi apparatus

Answer: C

Question 4

Which of the following hormones is released by the posterior pituitary?

Options :

A : FSH

B : LH

C : Oxytocin

D : ACTH

E : Prolactin

Answer: C

Question 5

A 10 kg box is sitting on a frictionless inclined plane at an angle 10 degrees above the horizontal. What

force must Mark apply to the box to prevent it from moving?

Options :

A : 100sin10 N

B : 10sin10 N

C : 10sin100 N

D : 100sin100 N

E : Cannot be determined.

Answer: A

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