Quiz
Circular Motion: Quiz
Perguntas do quiz (10)
1What is the formula for an angle?
- Aarc length/ radius
- Barc length/ time
- Cradius x arc length
2What is angular velocity measured in?
- ARadians
- BMetres/ second
- CRadians/ second
3What is the direction of centripetal acceleration?
- AThe direction in which the object is travelling
- BThe opposite direction to which the object is travelling
- CTowards the centre of the circle
- DAway from the centre of the circle
4Centripetal force is a scalar quantity.
- AVerdadeiro
- BFalso
5A man is riding a bicycle along a road at a constant speed. The wheels of the bike have a radius of 30cm and an angular velocity of 15 rad/s. What is the speed of the bicycle?
- A2 m/s
- B450 m/s
- C4.5 m/s
- D45 m/s
- E20 m/s
6According to Kepler's third law, the square of the periodic time of a satellite's orbit about a planet is inversely proportional to which of the following?
- AThe mass of the planet
- BThe radius of the planet
- CThe distance between the planet and the satellite
7A particle travels at at constant speed in a circle. What is its angular velocity if it completes 8 revolutions in 4 seconds?
- A6 π rad/s
- B6 rad/s
- C2 rad/s
- D2 π rad/s
8Centrifugal force acts in the direction away from the centre of the circle.
- AVerdadeiro
- BFalso
9When a satellite is orbiting the earth, its linear velocity squared is proportional to which of the following?
- AR
- B1/R
- CM
- DG
10T = 2πr/v is the formula for centripetal acceleration
- AVerdadeiro
- BFalso
Informações
- Descrição
- This quiz covers the topics of angles, velocity, centripetal acceleration, periodic time, centripetal forces and kepler's third law. It tests knowledge learnt in the mind map on circular motion and the corresponding notes and flash card decks.
- Autor
- tatemae.honne
- Idioma
- English
- Visualizações
- 142
- Etiquetas
- Avaliação
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