Physics Paper 1

Physics Paper 1

DIRT Lesson

Multiple Choice

What type of energy is stored in a battery?

• Kinetic

• Electrical

• Gravitational Potential

• Chemical

Multiple Choice

What colour is the neutral wire in a plug?

• Blue

• Green

• Green and Yellow

• Brown

Multiple Select

Select all the types of energy from the list:

• Kinetic

• Friction

• Nuclear

• Gravity

• Thermal

Multiple Choice

Which of these substances has the highest thermal conductivity?

• Brick

• Copper

• Glass

• Air

Multiple Choice

What unit is energy measured in?

• Joules

• Newtons

• Metres per second

• Ohms

Atomic Structure

Most of the mass of an atom is in the nucleus

The nucleus contains protons (positive) and neutrons (no charge)

Electrons circles the nucleus and have a negative charge

Multiple Choice

What charge does an electron have?

• Positive

• Negative

• No charge

Multiple Choice

What happens to an atom if it LOSES an electron?

• Gets a positive charge

• Gets a negative charge

• Nothing

How many neutrons?

To work out the number of neutrons, take the bottom number away from the top number:

top number - bottom number

So 4 - 2 = 2 neutrons in Helium!

Multiple Choice

How many protons in Oxygen?

• 4

• 8

• 16

• 32

Multiple Choice

How many electrons in Oxygen?

• 4

• 8

• 12

• 16

Multiple Choice

How many protons in Sodium?

• 11

• 22

• 23

• 46

Multiple Choice

How many neutrons in Sodium?

• 2

• 11

• 12

• 23

Multiple Choice

What is the mass number (A) of Helium?

• 4

• 2

• 6

Nuclear Radiation

Radioactive Decay: When an unstable nucleus decays into another element and gives out radiation to become stable

Ionising Radiation: α = Alpha, β = beta, ϒ = gamma

Radiation that knocks electrons off atoms, creating positive ions

Three types of radiation have been invitied to a party!

Multiple Choice

Which type of radiation is the most penetrating?

• Alpha

• Beta

• Gamma

Multiple Choice

Which type of radiation does the most damage?

• Alpha

• Beta

• Gamma

Alpha Particles

Made up of two protons and two neutrons

Just like a Helium nucleus!

Alpha Decay

Sometimes, big unstable atoms do not like having so many protons and neutrons in their nucleus so split up

They release two protons and two neutrons (an alpha particle) but this will often change the element into something else

Get ready for a question... What is A?

Multiple Choice

What is A?

• 234

• 235

• 239

• 4

Get ready for another one... What is Z?

Multiple Choice

What is Z?

• 2

• 237

• 93

• 95

Beta Decay

Sometimes, instead of two protons and two neutrons, an atom can only become stable if it releases a negatively charged electron - a beta particle

Ready for the next question: What is Z?

Multiple Choice

What is Z?

• 1

• 4

• 81

• 83

One more time: What is A?

Multiple Choice

What is A?

• 1

• 217

• 218

• 219

Multiple Choice

Which part of an atom has a negative charge?

• Proton

• Neutron

• Electron

Multiple Choice

Which type of radiation does the most damage to other atoms?

• Alpha

• Beta

• Gamma

Multiple Choice

What does the Atomic Number (Z) tell you about an atom?

• How many neutrons

• How much charge it has

• How many protons

• What colour it is

Poll

How do you feel about this topic?

• Help!!!!!!!!

• Not so bad

• A little better than before

• Great! I get it!