MOTION AND TIME
Q1. Name the following:
1. The watches and clocks used nowadays which have an electric circuit.
2. The scientist who found that, a pendulum of a given length takes the same time to complete one oscillation.
3. The clocks that were used to measure time, before the pendulum clock became popular.
Q2. Fill in the blanks:
One microsecond is ____________________ of a second.
One nanosecond is _____________________ of a second.
___________ of objects helps us to decide which one is moving faster than the other.
The speed of a vehicle is measured with a device called ______________.
________________ measures the distance moved by the vehicle.
All clocks are based on _______________ events.
________________ is used to measure short intervals of time.
36 km/h is the same as _____________ m/s.
The slope of a distance-time graph represents ____________.
The distance-time graph for the motion of an object with a constant speed is a _______________ line.
Q3. Choose the correct option:
1. A repetitive motion which takes place at equal intervals of time is called:
a) random motion b) rectilinear motion c) curvilinear motion d) periodic motion
2. Time period of a pendulum does not depend upon:
a) mass of the bob b)size of the bob c) amplitude d) all of these
3. While plotting a graph one must take care to plot:
a) The independent quantity on Y-axis b) The independent quantity on X-axis
c) The dependent quantity on X-axis d) None of these
4. If the distance-time graph is a curved line:
a) A non-uniform speed is maintained by the object
b) The object covers unequal distances in equal intervals of time c) Both a) and b)
d) None of these
Answers with no sense will be reported.
Correct answers will be marked as brainliest.
100 points
Answers
Answered by
2
Answer:
Q1. Name the following:
1. most clocks or watches have an electric circuit with one or more cells. These clocks are called quartz clocks. The time measured by quartz clocks is much more accurate than that by the clocks available earlier.
2. GALILEO GALILIE
3. The scientist who found that, a pendulum of a given length takes the same time to complete one oscillation
Answered by
0
Answer:
Series combination. When two or more resistances are connected end to end consecutively, they are said to be connected in series combination. The combined resistance of any number of resistances connected in series in equal to the sum of the individual resistances
Similar questions