P7 AQA Radioactivity KP

___________ particles are made up of 2 protons and 2 neutrons.

• alpha
• unstable
• 0
• Braking
• resolving

A ________ particle is a fast moving electron.

• beta
• smoke
• 1
• Conserved
• voltage

_______________ radiation is pure energy and is part of the electromagnetic spectrum.

• gamma
• reflected
• 2
• Directly proportional
• Use the formula to work out the current for a microwave with a 230V@ 690W rating. ______ A (do not include the unit).

Alpha radiation can be stopped by a sheet of_______________.

• Paper
• random
• 4
• Elastic
• up

Beta radiation can be stopped by a thin sheet of ____________.

• metal
• plum
• alpha
• Extension
• transformers

Gamma is the most __________________ type of radiation. Thick lead plates or concrete 1 meter thick are required to stop it.

• penetrating
• penetrating
• beta
• Inertia
• Power

Beta can travel about ___m through the air.

• 1
• Paper
• beta
• proportionality
• plastic

Alpha radiation has a _______________ charge.

• 2
• neutron
• Bohr
• Mass
• national grid

gamma radiation has ____ charge and 0 mass. so does not change the atomic or mass number of the atom.

• 0
• metal
• concrete
• Stopping
• melts

During Beta radiation the atomic number ___________ by 1 but the mass number stays the same.

• increases
• mass
• contamination
• Terminal velocity
• heats