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Course: AS Physics 9702
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AS Physics 9702

1. Physical quantities and kinematics

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2. Dynamics, forces and pressure

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3. Work, energy, power and deformation

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4. Waves and superposition

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5. Electricity and D.C. circuits

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7. Circular motion and gravitational fields (A Level)

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8. Thermal physics (A Level)

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10. Electric fields and capacitance (A Level)

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11. Magnetic fields and alternating currents (A Level)

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12. Quantum and nuclear physics (A Level)

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13. Medical physics and astronomy (A Level)

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Quiz

AS & A Level Physics 9702 – 2.2 Forces, density and pressure – Quiz

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Forces, density and pressure AS Physics quiz: free practice for AS Physics 9702. Work through this Forces, density and pressure AS Physics quiz and get instant feedback on every answer. If you get stuck, review the 2.2 FORCES, DENSITY AND PRESSURE — Notes lesson. More practice: AS Physics 9702 — all units. Syllabus: Cambridge AS & A Level Physics 9702 syllabus.

1.

The moment of a force about a point is

the force multiplied by the time for which it acts
the force divided by the area
the force multiplied by the perpendicular distance from the point to the line of action of the force
the force multiplied by the distance moved
2.

A couple consists of

two equal forces acting in the same direction
a single force acting at the centre of gravity
two perpendicular forces
two equal and opposite parallel forces whose lines of action do not coincide
3.

For a body to be in equilibrium

only the resultant force must be zero
the resultant force and the resultant moment about any point must both be zero
only the resultant moment must be zero
it must be at rest
4.

A block of volume 2.0 × 10⁻³ m³ has mass 5.4 kg. What is its density?

370 kg m⁻³
0.011 kg m⁻³
2700 kg m⁻³
10.8 kg m⁻³
5.

What is the pressure due to a 5.0 m depth of water of density 1000 kg m⁻³? (g = 9.81 m s⁻²)

4.9 × 10³ Pa
5.0 × 10³ Pa
2.0 × 10² Pa
4.9 × 10⁴ Pa
6.

Upthrust on a submerged object arises because

the pressure in the fluid is greater on the lower surface than on the upper surface
the object is less dense than the fluid
the fluid is compressed
the weight of the object decreases
7.

Archimedes’ principle states that the upthrust on a body in a fluid equals

the weight of the fluid displaced
the weight of the body
the volume of the fluid displaced
the mass of the body
8.

A uniform metre rule is pivoted at its centre. A 2.0 N weight hangs 30 cm from the pivot. Where must a 3.0 N weight hang on the other side for balance?

20 cm from the pivot
45 cm from the pivot
30 cm from the pivot
10 cm from the pivot
9.

The centre of gravity of a body is the point

at which the whole weight of the body may be considered to act
at the geometrical centre of the body
where the body is densest
about which the body rotates
10.

Three coplanar forces keep a body in equilibrium. Drawn to scale as a vector diagram, they form

a straight line
an open triangle
a closed triangle
a right angle
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