Important Question and Answers Motion and Time
A.Give One Word Answers
Q1.Which is the most accurate watch?
Ans.Atomic watch
Q2.S.I unit of time is
Ans.Second
Q3.Speed time graph is a straight line for
Ans.Uniform motion
Q4.Change in position of a body is called
Ans.Motion
Q5.Pendulum clock is based on
Ans.Galileo's observation
Q6.The speed of the vehicle is recorded by
Ans.Speedometer
Q1.Define motion? Write its S.I unit of speed?
Ans.The change in position of a body with time is calle d motion. The S.I unit of speed is meter per second.
Q2.What is odometer? What is its function?
Ans.It is a device that records total distance covered by the vehicle. It is used to calculate the distance traveled in particular journey.
Q3.Write difference between uniform and non- uniform motion?
Ans.When a body covers equal distance in equal interval of time the motion is called uniform motion. When a body covers unequal distance in equal interval of time, the speed is called non- uniform motion.
Q4.When is object said to be in a state of rest, what is time period
Ans.An object is said to be in state of rest if it do n ot changes its position with time and surrounding. An object lying on table is at rest.
Time taken to complete one oscillation is called time period
Q5.What is difference between speed and velocity
Ans.Speed is the change in position of a body per unit time. On the other hand velocity is the speed with direction. Speed is scalar and veloc ity is vector quantity.
6.Give one word for the following explanations:
a. Meter fitted in vehicle to measure the speed.
b. Total distance covered by a body in unit interval o f time.
c. Change in position of a body with time.
d. Time interval of 1000 years.
e. Watch used to measure exact time taken during the e vent.
Ans.6.a. Speedometer
b. Odometer
c. Speed
d. Millennium
e. Stop watch.
Q7.Fill in the blanks
a. One microsecond is ------------ of a second.
b. ---------------- of object helps us to decide which one is moving faster than the other.
c. All clocks are based on ---------------- events.
d. The slop of a distance- time graph represents ----- -----------.
e. ---------------- is used to measure short interval of time.
Ans.(a) 1/1000 (b) comparison(c) vibration (d) speed (e ) stop-watch.
Q8.Fill in the blanks
.a. Distance traveled by a body in unit time is called -----------------.
b. 72 km/h is equal to ---------------- m/s.
c. Distance covered = -------------- x time.
d. A mineral used in the crystal form in watch is ---- ---------.
e. A body is said to be in ------------ of it covers e qual distance in equal interval of time.
Ans.(a) Speed (b) 20 (c) Speed (d) Quartz (e) Uniform motion.
A.Give One Word Answers
Q1.Which is the most accurate watch?
Ans.Atomic watch
Q2.S.I unit of time is
Ans.Second
Q3.Speed time graph is a straight line for
Ans.Uniform motion
Q4.Change in position of a body is called
Ans.Motion
Q5.Pendulum clock is based on
Ans.Galileo's observation
Q6.The speed of the vehicle is recorded by
Ans.Speedometer
Q1.Define motion? Write its S.I unit of speed?
Ans.The change in position of a body with time is calle d motion. The S.I unit of speed is meter per second.
Q2.What is odometer? What is its function?
Ans.It is a device that records total distance covered by the vehicle. It is used to calculate the distance traveled in particular journey.
Q3.Write difference between uniform and non- uniform motion?
Ans.When a body covers equal distance in equal interval of time the motion is called uniform motion. When a body covers unequal distance in equal interval of time, the speed is called non- uniform motion.
Q4.When is object said to be in a state of rest, what is time period
Ans.An object is said to be in state of rest if it do n ot changes its position with time and surrounding. An object lying on table is at rest.
Time taken to complete one oscillation is called time period
Q5.What is difference between speed and velocity
Ans.Speed is the change in position of a body per unit time. On the other hand velocity is the speed with direction. Speed is scalar and veloc ity is vector quantity.
6.Give one word for the following explanations:
a. Meter fitted in vehicle to measure the speed.
b. Total distance covered by a body in unit interval o f time.
c. Change in position of a body with time.
d. Time interval of 1000 years.
e. Watch used to measure exact time taken during the e vent.
Ans.6.a. Speedometer
b. Odometer
c. Speed
d. Millennium
e. Stop watch.
Q7.Fill in the blanks
a. One microsecond is ------------ of a second.
b. ---------------- of object helps us to decide which one is moving faster than the other.
c. All clocks are based on ---------------- events.
d. The slop of a distance- time graph represents ----- -----------.
e. ---------------- is used to measure short interval of time.
Ans.(a) 1/1000 (b) comparison(c) vibration (d) speed (e ) stop-watch.
Q8.Fill in the blanks
.a. Distance traveled by a body in unit time is called -----------------.
b. 72 km/h is equal to ---------------- m/s.
c. Distance covered = -------------- x time.
d. A mineral used in the crystal form in watch is ---- ---------.
e. A body is said to be in ------------ of it covers e qual distance in equal interval of time.
Ans.(a) Speed (b) 20 (c) Speed (d) Quartz (e) Uniform motion.
Q9.Salma takes 15 minutes from her house to reach her school on bicycle. If the bicycle has a speed of 2 m/s, calculate the distance betwee n her house and the school.
Ans.
Q10.The odometer of a car reads 57,321.0 km when the cl ock shows the time 8.30 AM. The odometer reading was changed to 57,336.0 km. ca lculate the speed of the car in km/min during this time. Express the speed in km/h also.
Ans.
Nice post keep it up dude.
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