That y8 kid 🤣 - bot · guest · Physics

01 During a one-minute revision round: An alpha particle contains

A two protons and two neutrons It is a helium-4 nucleus.

B one electron This does not satisfy the stated relationship.

C one proton and one neutron This does not satisfy the stated relationship.

D two photons This does not satisfy the stated relationship.

Written for icaijy.com · U1 · Nuclear physics · answered at 100 ms

02 During a one-minute revision round: The double-slit interference pattern most directly demonstrates light’s

A sound speed This does not satisfy the stated relationship.

B electric charge This does not satisfy the stated relationship.

C rest mass This does not satisfy the stated relationship.

D wave behaviour Interference is characteristic of waves.

Written for icaijy.com · U4 · Models of light · answered at 100 ms

03 During a one-minute revision round: An ideal black body is a perfect

A thermal insulator This does not satisfy the stated relationship.

B mirror at every wavelength This does not satisfy the stated relationship.

C source of alpha particles This does not satisfy the stated relationship.

D absorber and emitter of radiation A black body absorbs and emits electromagnetic radiation ideally.

Written for icaijy.com · U1 · Radiation · answered at 100 ms

04 A student is checking a worked solution. A straight-line graph with a non-zero intercept most clearly indicates

A random error only This does not satisfy the stated relationship.

B a possible systematic offset A persistent intercept may reveal calibration or background bias.

C proof of causation This does not satisfy the stated relationship.

D zero uncertainty This does not satisfy the stated relationship.

Written for icaijy.com · U4 · Data analysis · answered at 100 ms

05 Rest energy is given by

A \(E_0=mc\) This does not satisfy the stated relationship.

B \(E_0=m/c^2\) This does not satisfy the stated relationship.

C \(E_0=mv\) This does not satisfy the stated relationship.

D \(E_0=mc^2\) Mass has rest-energy equivalent mc².

Written for icaijy.com · U3 · Relativity · answered at 100 ms

06 During a one-minute revision round: In an isolated collision, total

A momentum is conserved Internal impulses cancel, conserving total momentum.

B speed of each object is conserved This does not satisfy the stated relationship.

C force is zero throughout This does not satisfy the stated relationship.

D kinetic energy is always conserved This does not satisfy the stated relationship.

Written for icaijy.com · U2 · Momentum · answered at 100 ms

07 Which response best completes this VCE-style item? The area under a velocity–time graph gives

A displacement Integrating velocity over time gives displacement.

B force This does not satisfy the stated relationship.

C power This does not satisfy the stated relationship.

D acceleration This does not satisfy the stated relationship.

Written for icaijy.com · U2 · Motion · answered at 100 ms

08 Impulse equals the change in

A kinetic energy This does not satisfy the stated relationship.

B momentum \(J=\Delta p\).

C power This does not satisfy the stated relationship.

D velocity only This does not satisfy the stated relationship.

Written for icaijy.com · U3 · Momentum · answered at 100 ms

09 Beta-minus decay converts a neutron into

A an alpha particle This does not satisfy the stated relationship.

B two neutrons This does not satisfy the stated relationship.

C a photon only This does not satisfy the stated relationship.

D a proton, electron and antineutrino Charge and lepton number are conserved.

Written for icaijy.com · U1 · Nuclear physics · answered at 100 ms

10 During a one-minute revision round: Two resistors in series always carry the same

A power This does not satisfy the stated relationship.

B resistance This does not satisfy the stated relationship.

C current There is one path for charge flow.

D voltage This does not satisfy the stated relationship.

Written for icaijy.com · U1 · Circuits · answered at 100 ms

11 Which response best completes this VCE-style item? The electric field direction is the direction of force on a

A negative electron This does not satisfy the stated relationship.

B positive test charge Field direction is defined using a positive test charge.

C neutron This does not satisfy the stated relationship.

D magnetic north pole This does not satisfy the stated relationship.

Written for icaijy.com · U3 · Electric fields · answered at 100 ms

12 The area under a velocity–time graph gives

A acceleration This does not satisfy the stated relationship.

B power This does not satisfy the stated relationship.

C displacement Integrating velocity over time gives displacement.

D force This does not satisfy the stated relationship.

Written for icaijy.com · U2 · Motion · answered at 100 ms

13 Above threshold, maximum photoelectron kinetic energy increases with

A surface area only This does not satisfy the stated relationship.

B exposure time only This does not satisfy the stated relationship.

C intensity only This does not satisfy the stated relationship.

D frequency \(K_{max}=hf-\phi\).

Written for icaijy.com · U4 · Photoelectric effect · answered at 100 ms

14 An alpha particle contains

A one electron This does not satisfy the stated relationship.

B one proton and one neutron This does not satisfy the stated relationship.

C two photons This does not satisfy the stated relationship.

D two protons and two neutrons It is a helium-4 nucleus.

Written for icaijy.com · U1 · Nuclear physics · answered at 100 ms

15 A student is checking a worked solution. The de Broglie wavelength of a particle is

A \(\lambda=hf\) This does not satisfy the stated relationship.

B \(\lambda=hp\) This does not satisfy the stated relationship.

C \(\lambda=p/h\) This does not satisfy the stated relationship.

D \(\lambda=h/p\) Matter wavelength is inversely proportional to momentum.

Written for icaijy.com · U4 · Matter waves · answered at 100 ms

16 A student is checking a worked solution. Beta-minus decay converts a neutron into

A a photon only This does not satisfy the stated relationship.

B an alpha particle This does not satisfy the stated relationship.

C a proton, electron and antineutrino Charge and lepton number are conserved.

D two neutrons This does not satisfy the stated relationship.

Written for icaijy.com · U1 · Nuclear physics · answered at 100 ms

17 During a one-minute revision round: Refraction occurs because light

A changes speed between media A speed change produces a direction change except at normal incidence.

B changes frequency at the boundary This does not satisfy the stated relationship.

C loses all energy This does not satisfy the stated relationship.

D becomes charged This does not satisfy the stated relationship.

Written for icaijy.com · U2 · Light · answered at 100 ms

18 Which response best completes this VCE-style item? During melting at constant pressure, added energy mainly

A destroys energy This does not satisfy the stated relationship.

B increases particle potential energy Energy changes arrangement while temperature remains constant.

C reduces internal energy This does not satisfy the stated relationship.

D increases temperature continuously This does not satisfy the stated relationship.

Written for icaijy.com · U1 · Thermal physics · answered at 100 ms

19 Which response best completes this VCE-style item? Wave frequency is determined by the

A source The source sets the oscillation frequency.

B medium alone This does not satisfy the stated relationship.

C amplitude This does not satisfy the stated relationship.

D observer’s clock only This does not satisfy the stated relationship.

Written for icaijy.com · U2 · Waves · answered at 100 ms

20 A student is checking a worked solution. Two coherent waves arrive in phase. They produce

A constructive interference Their displacements reinforce.

B photoelectric emission This does not satisfy the stated relationship.

C polarisation only This does not satisfy the stated relationship.

D destructive interference This does not satisfy the stated relationship.

Written for icaijy.com · U4 · Waves · answered at 100 ms