WPH0 QR Dynamic Papers Physics al Edexcel

info@qrpastpapers.com +20 106 606 6272

Home
Products
Free Past Papers
more
- Plans
- About
- Our Team
- Contact Us
- How It Works
- Our Services
- Why Us?

Edexcel | Physics WPH0 | S 10 5 1 | 1 hour 30 minutes

QP PDF

Manage Classified

MS PDF

Q1
Q2
. . . .
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
Q17
Q18

14

Add To Classified

Ionisation smoke detectors contain a small amount of the radioactive isotope americium.

14

(a)

Add To Classified

1 Mark

Explain why the radiation produced by a smoke detector does not pose a health

hazard.

Alpha-radiation only has a range of a few cm in air / cannot penetrate

walls of container / skin

14

(b) (I)

Add To Classified

2 Mark s

Complete the nuclear equation for the decay of americium.

14

(b) (II)

Add To Classified

3 Mark s

Using data from the table, calculate the energy, in MeV, of α-particles released

when a nucleus of americium-241 undergoes alpha decay.

Energy = ................................................... MeV

14

(c)

Add To Classified

1 Mark

An ionisation smoke detector is sold with the guarantee that it “lasts a

lifetime”. Comment on the appropriateness of this guarantee, based on its use of

americium-241.

Reference to half-life and typical lifespan

Q1
Q2
. . . .
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Q10
Q11
Q12
Q13
Q14
Q15
Q16
Q17
Q18

QR Past Papers.

Email:info@qrpastpapers.com
Phone: +2 0106 606 6272

Home
Legal Information
Terms And Conditions
Return & Refund Policy
Privacy policy

Login
Register
Shop
About us
Contact US
Services

Our Social Networks

All the included past papers are copyrighted © University of Cambridge Local Examinations Syndicate (UCLES), which we have collected from various online sources and gathered together in one website.