Test
AQA GCSE Physics Unit 3.2
Este test tiene tiempo límite, así que se abre en el reproductor de siempre.
Preguntas del test (20)
1True or false? A moment is a turning effect of a force.
- AVerdadero
- BFalso
2Which of these are components of a lever?
- ALoad
- BWork
- CEffort
- DEnergy
- EFulcrum
- FForce
3Which of these is the correct equation for a moment?
- AMoment = force * distance from line of action
- BMoment = force * perpendicular distance from line of action
- CMoment = force/distance from line of action
- DMoment = force/perpendicular distance from line of action
4True or false? The centre of mass is the point at which the object's weight can be thought to be concentrated.
- AVerdadero
- BFalso
5True or false? If an object's centre of mass lies outside the point of suspension, the object is in equilibrium.
- AVerdadero
- BFalso
6Where is the centre of mass in a symmetrical object with multiple lines of symmetry?
- AAt a point on one of the lines of symmetry
- BAt a point which is not on the lines of symmetry
- CAt the point where the lines of symmetry meet
7True or false? The sum of all clockwise moments is always greater than the sum of all anticlockwise moments about a single point in equilibrium.
- AVerdadero
- BFalso
8How far from the fulcrum would I place a parcel with weight 20N on a seesaw if there were a parcel with weight 17.5N 4m from the fulcrum?
- A3m
- B3.5m
- C3.75m
- D3.25m
- E4m
9When will there be a resultant moment causing an object to topple over?
- AWhen the centre of mass is within the base
- BWhen the centre of mass is directly above the base
- CWhen the centre of mass is outside the base
10Where would you recommend passengers to sit in a double-decker bus to increase its stability?
- AOn the lower deck
- BOn the upper deck
11Which of these decrease the stability of an object?
- AWide base
- BNarrow base
- CLow centre of mass
- DHigh centre of mass
12Which of these is the correct equation for pressure?
- APressure = force/area
- BPressure = area/force
- CPressure = force * area
13True or false? The pressure in a liquid does not act equally over all directions.
- AVerdadero
- BFalso
14What is the force on a load in a hydraulic system if the force on the effort is 20N, the area of the effort is 0.05m^2 and the area of the load is 1.5m^2?
- A600N
- B60N
- C0.67N
15True or false? Centripetal acceleration acts towards the centre of a circle.
- AVerdadero
- BFalso
16True or false? Centripetal force is a force in its own right.
- AVerdadero
- BFalso
17Which of these will increase the centripetal force acting upon an object?
- AIncrease in mass
- BDecrease in mass
- CIncrease in speed
- DDecrease in speed
- EIncrease in radius
- FDecrease in radius
18What type of motion does a simple pendulum follow?
- AReciprocating motion
- BOscillating motion
19True or false? The amplitude of a pendulum is the distance between the equilibrium position and the highest point on either side.
- AVerdadero
- BFalso
20True or false? The time period of a pendulum is the time it takes to go from the highest point on one side to the other.
- AVerdadero
- BFalso
Información
- Descripción
- Twenty questions on the second section of Unit 3 in AQA GCSE Physics: Using physics to make things work.
- Autor
- Matthew T
- Idioma
- English
- Visitas
- 495
- Etiquetas
- Valoración
- 3,5 de 5 · 4 valoraciones Valora este test