O Level Physics 5070 Variant 2 Quiz

Conductors and insulators both allow electric charges to flow through them easily

Insulators allow electric charges to flow through them easily, while conductors do not

Conductors allow electric charges to flow through them easily, while insulators do not (correct)

Conductors and insulators both do not allow electric charges to flow through them easily

Electrons are emitted from the metal surface due to collisions with photons

The intensity of light affects the kinetic energy of the emitted electrons

Only photons with energies above a certain threshold can cause electrons to be emitted from a metal surface (correct)

The frequency of light affects the number of electrons emitted

In inelastic collisions, objects stick together after colliding, while in elastic collisions, they bounce off each other

In elastic collisions, kinetic energy is conserved, while in inelastic collisions, it is not (correct)

In inelastic collisions, momentum is conserved, while in elastic collisions, it is not

In elastic collisions, objects stick together after colliding, while in inelastic collisions, they bounce off each other