Lesson MD1-MD3
MD1-MD3 Uniform circular motion Quiz: AQA Further Maths, Unit 3
20 questions
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Lesson MD1-MD3, Uniform circular motion: 20 multiple choice questions for the AQA Further Maths (7367), Unit 3: Optional application 1: mechanics, written with Revision Ninja.
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The 20 questions
-
Angular speed is defined as the rate of change of which quantity with respect to time?
- The radius of the circle
- The linear acceleration
- The angle turned through by the radius
- The linear distance travelled
-
What is the angle, in radians, subtended at the centre of a circle by an arc whose length equals the radius?
- pi divided by 2 radians
- 1 degree
- 2 pi radians
- 1 radian
-
What is the SI unit of angular speed?
- Radians per second
- Metres per second squared
- Metres per second
- Revolutions per metre
-
In uniform circular motion, the acceleration of the particle is directed:
- Towards the centre of the circle
- In the direction of the velocity
- Away from the centre of the circle
- Along the tangent to the circle
-
For a particle moving in a circle at constant speed, which quantity remains constant?
- Direction of motion
- Acceleration
- Speed
- Velocity
-
Which formula relates linear speed v, radius r and angular speed omega?
- v = r omega
- v = omega divided by r
- v = r squared omega
- v = r divided by omega
-
A wheel turns at 60 revolutions per minute. What is its angular speed in radians per second?
- 60 rad/s
- pi rad/s
- 120 pi rad/s
- 2 pi rad/s
-
A particle moves in a circle of radius 0.5 m with speed 3 m/s. What is its angular speed?
- 3.5 rad/s
- 1.5 rad/s
- 6 rad/s
- 0.17 rad/s
-
A particle moves in a circle of radius 2 m with angular speed 3 rad/s. What is the magnitude of its acceleration?
- 6 m/s^2
- 18 m/s^2
- 12 m/s^2
- 9 m/s^2
-
A particle moves in a circle of radius 0.8 m at a constant speed of 4 m/s. What is the magnitude of its acceleration?
- 20 m/s^2
- 12.8 m/s^2
- 5 m/s^2
- 3.2 m/s^2
-
A wheel of radius 0.3 m turns at 120 revolutions per minute. What is the angular speed of the wheel in radians per second?
- 0.4 pi rad/s
- 4 pi rad/s
- 2 pi rad/s
- 12 pi rad/s
-
A particle moves in a circle with angular speed 4 rad/s. How long does it take to complete one full revolution?
- 2 pi s
- 8 pi s
- pi/2 s
- pi/8 s
-
A particle moves in a circle of radius 1.5 m with angular speed 2 rad/s. What is its acceleration magnitude?
- 1.33 m/s^2
- 3 m/s^2
- 12 m/s^2
- 6 m/s^2
-
Two points on a rotating turntable lie at radii 0.2 m and 0.4 m from the axis. Which statement is correct?
- Both points have the same linear speed
- The inner point has twice the linear speed
- The outer point has twice the linear speed
- The outer point has four times the linear speed
-
A particle moves at 6 m/s around a circle of radius 3 m. How long does it take to travel through an angle of 90 degrees?
- pi/2 s
- pi s
- pi/8 s
- pi/4 s
-
A particle moves in a circle at constant speed. If its speed is doubled while the radius stays the same, how does its acceleration change?
- It is unchanged
- It doubles
- It becomes four times as large
- It becomes eight times as large
-
A particle moves in a circle of radius 3 m with acceleration 12 m/s^2 towards the centre. What is its angular speed?
- 36 rad/s
- 6 rad/s
- 2 rad/s
- 4 rad/s
-
Particle A moves on a circle of radius 1 m with angular speed 3 rad/s. Particle B moves on a circle of radius 2 m at linear speed 6 m/s. Which statement is correct?
- B has greater acceleration of 18 m/s^2
- Both have equal acceleration of 9 m/s^2
- B has acceleration of 3 m/s^2
- A has greater acceleration of 9 m/s^2
-
A wheel of radius 0.35 m turns at 40 revolutions per second. What is the linear speed of its rim?
- 14 pi m/s
- 0.35 pi m/s
- 28 pi m/s
- 80 pi m/s
-
A particle moves in a circle of radius 0.5 m at constant speed and completes 3 revolutions in 2 seconds. What is the magnitude of its acceleration?
- 3 pi^2 m/s^2
- 18 pi^2 m/s^2
- 9 pi m/s^2
- 4.5 pi^2 m/s^2
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