Mass and Energy (Leaving Cert Physics): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
In which year did Einstein propose his Special Theory of Relativity?
In which year did Einstein propose his Special Theory of Relativity?
1905
In the equation , what does represent?
In the equation , what does represent?
Energy in joules
What is the value of (speed of light) used in ?
What is the value of (speed of light) used in ?
m/s
What is the approximate value of (speed of light squared)?
What is the approximate value of (speed of light squared)?
What units must mass be expressed in when using ?
What units must mass be expressed in when using ?
Kilograms
What is the mass defect in nuclear reactions?
What is the mass defect in nuclear reactions?
Difference in mass of products/reactants
Why do nuclear reactions release more energy than chemical reactions?
Why do nuclear reactions release more energy than chemical reactions?
They convert mass into energy
What is 1 unified atomic mass unit (u) equal to in kilograms?
What is 1 unified atomic mass unit (u) equal to in kilograms?
kg
What happens when mass of reactants > mass of products in a nuclear reaction?
What happens when mass of reactants > mass of products in a nuclear reaction?
Energy is given out
In which year did Cockcroft and Walton conduct their groundbreaking nuclear experiment?
In which year did Cockcroft and Walton conduct their groundbreaking nuclear experiment?
1932
In what forms is energy released in nuclear reactions?
In what forms is energy released in nuclear reactions?
Kinetic energy or gamma rays