LGS Mixed Practice Test #772

Question 1

During an 'Elaborate' phase of a 5E lesson on ecosystems, what would be an appropriate activity for students?

Accepted Answer

B. Designing a miniature self-sustaining ecosystem in a jar and monitoring its changes. — The 'Elaborate' phase requires students to apply their newly acquired knowledge to new situations, extend their understanding, and make connections to real-world phenomena. Designing a miniature ecosystem allows students to apply their knowledge of ecosystem components and interactions in a practical, extended context. Watching a documentary is 'Engage', discussing definitions is 'Explain', and taking a quiz is 'Evaluate'.

Answer

A. Watching a documentary about various ecosystems to introduce the topic.

Answer

C. Discussing the formal definitions of producers, consumers, and decomposers.

Answer

D. Taking a multiple-choice quiz on the components of an ecosystem.

Question 2

Padmanabhaswamy Temple is in:‌​‍

Accepted Answer

Thiruvananthapuram — Sree Padmanabhaswamy Temple in Thiruvananthapuram — richest temple.‌​‍

Answer

Ernakulam

Answer

Kollam

Answer

Thrissur

Question 3

ISRO was founded in:‌​‍

Accepted Answer

1969 — ISRO was founded in 1969 by Dr. Vikram Sarabhai.‌​‍

Answer

1962

Answer

1965

Answer

1972

Question 4

Which matrix represents the identity matrix I of order 3?‌​‍

Accepted Answer

[[1,0,0],[0,1,0],[0,0,1]] — AI = IA = A for any compatible A. Inverse: A·A⁻¹ = I.‌​‍

Answer

[[0,0,0]]

Answer

[[2,0,0]]

Answer

[[1,1,1],[1,1,1],[1,1,1]]

Question 5

Which is the first municipality in Kerala?

Accepted Answer

Thalassery — Fort Cochin and Thalassery were among the first municipalities in Kerala, with Thalassery municipality formed in 1866.

Answer

Thiruvananthapuram

Answer

Kochi

Answer

Kozhikode

Question 6

Guruvayur Devaswom:

Accepted Answer

Autonomous — Autonomous body.

Answer

Travancore

Answer

Cochin

Answer

Malabar

Question 7

Schottky defect involves:‌​‍

Accepted Answer

Missing cation and anion (electrical neutrality preserved) — Density decreases. ‌​‍Common in NaCl, KCl. Frenkel: cation shifts to interstitial (density unchanged); ZnS, AgCl.

Answer

Only cation

Answer

Only anion

Answer

Extra cations

Question 8

In a sample with 10,000 radioactive atoms of half-life 1 month, atoms remaining after 3 months:‌​‍

Accepted Answer

1,250 — After n half-lives: N = N₀/2ⁿ. 3 half-lives: 10000/8 = 1250.‌​‍

Answer

Nil

Answer

5,000

Answer

2,500

Question 9

A convex lens of focal length 20 cm has power:‌​‍

Accepted Answer

+5 D — P = 1/f(m) = 1/0.20 = +5 D (convex has +ve power).‌​‍

Answer

+20 D

Answer

+2 D

Answer

−2 D

Question 10

Dr. Sharma, a research scientist, is faced with a completely novel experimental challenge for which no standard protocols or established solutions exist. She spends considerable time brainstorming unconventional approaches, combining disparate ideas from different fields, and eventually devises an entirely new methodology that successfully addresses the problem. This capability primarily reflects which component of Robert Sternberg's Triarchic Theory of Intelligence?

Accepted Answer

B. Experiential (creative) intelligence. — Sternberg's experiential (creative) intelligence is characterized by the ability to deal with novelty and to automate information processing. Dr. Sharma's approach of brainstorming unconventional methods and combining disparate ideas to solve a novel problem perfectly illustrates the creative aspect of experiential intelligence, distinct from analytical problem-solving or adapting to an existing context.

Answer

A. Componential (analytical) intelligence.

Answer

C. Contextual (practical) intelligence.

Answer

D. Crystallized intelligence.

LGS Mixed Practice Test #772