Friday, July 12, 2013

CBSE Class 7 - Science - CH13: Motion and Time (MCQs)

Motion and Time

Q1: Which of the following instrument measures time with the most accuracy?

(a) sun dial
(b) sand clock
(c) quartz clock
(d) mechanical clock with gears

Q2: The basic unit of speed is:

(a) km/min
(b) m/min
(c) km/h
(d) m/s

Q3: A faster moving object covers:

(a) Less distance in more time
(b) More distance in more time
(c) Less distance in shorter time
(d) More distance in shorter time

Q4: 36 km/hr can also be expressed as:

(a) 10 m/s
(b) 3.6 m/s
(c) 100 m/s
(d) 36 m/s

Q5: If the an object moving along a straight line, keeps changing its speed then,

(a) The motion is said to be a uniform motion
(b) The motion is said to be a non uniform motion
(c) The object is said to be stationary
(d) The motion is said to be a fast motion

Q6: The motion that repeats itself after regular intervals of time can be ___ (Find the incorrect option).

(a) To and Fro Motion
(b) Circular Motion
(c) Rectilinear Motion
(d) Periodic Motion

Q7: The metallic ball in a pendulum is called as _______

(a) Gong
(b) Fork
(c) Rod
(d) Bob

Q8: Which of the following relations is correct?

(a) Speed = Distance × Time
(b) Speed = Distance ÷ Time
(c) Speed = Time ÷ Distance
(d) Speed = 1/(Distance × Time)

Q9: Which of the following is a scalar quantity?

(a) Distance
(b) Displacement
(c) Velocity
(d) Force

Q10: The meter that is used to measure the distance moved by the vehicle is known as _____

(a) Speedometer
(b) Odometer
(c) Chronometer
(d) Ammeter

1: (c) quartz clock
2: (d) m/s
3: (d) More distance in shorter time
4: (a) 10 m/s
5: (b) The motion is said to be a non uniform motion
6: (c) Rectilinear Motion

7: (d) Bob
8: (b) Speed = Distance ÷ Time
9: (a) Distance

10: (b) Odometer