UNIT -5 (Metals and Non Metals).pdf
4.3 MB
This is Chem supplementary note for Grade 10th students
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A car travels 100 km in 2 hours. What is its average speed?
a) 200 km/h
b) 50 km/h
c) 25 km/h
d) 100 km/h
a) 200 km/h
b) 50 km/h
c) 25 km/h
d) 100 km/h
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If an object has a constant acceleration, its velocity:
a) Is also constant.
b) Changes at a constant rate.
c) Changes at an increasing rate.
d) Is zero.
a) Is also constant.
b) Changes at a constant rate.
c) Changes at an increasing rate.
d) Is zero.
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What does the slope of a distance-time graph represent?
a) Acceleration
b) Velocity
c) Displacement
d) Time
a) Acceleration
b) Velocity
c) Displacement
d) Time
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An object is at rest if its:
a) Acceleration is zero.
b) Velocity is changing.
c) Velocity is zero.
d) Displacement is zero
a) Acceleration is zero.
b) Velocity is changing.
c) Velocity is zero.
d) Displacement is zero
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At the highest point of its trajectory, a projectile has:
a) Zero velocity b) Zero horizontal velocity c) Zero vertical velocity d) Zero acceleration
a) Zero velocity b) Zero horizontal velocity c) Zero vertical velocity d) Zero acceleration
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1. Which of the following is the large taxonomic rank?
a) Species
b) Genus
c) Kingdom
d) Family
a) Species
b) Genus
c) Kingdom
d) Family
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