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Wrap Up Quiz

Total questions: 20

Worksheet time: 42mins

Name
Class
Date
1.

Which one of Newton's laws are displayed

a)

2nd law

b)

1st law

c)

3rd law

2.

Two skaters begin at rest. Skater 1 has a smaller mass than Skater 2. After they push off each other,...

a)

Skater 1 experiences a greater change in momentum

b)

Skater 2 experiences a greater change in momentum

c)

Skater 1 has a greater speed than Skater 2

d)

Skater 1 experiences a greater force

3.

If an unbalanced resultant force acts upon an object it will accelerate in the direction of the resultant force.

a)

Newton's third Law

b)

Newton's first Law

c)

Newton's second Law

4.
The formula 
? = mass x acceleration
or 
? = m x a 
is used to find 
a)
Force
b)
Velocity
c)
Momentum
d)
Gravity
5.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
6.

Which material heats up quickest?

a)

Aluminium

b)

Concrete

c)

Diamond

d)

Glass

e)

Water

7.

10 kg of aluminium is heated from 120C to 220C. How much energy is needed?

a)

8 970 000 J

b)

897 J

c)

8970 J

d)

89 700 J

e)

897 000J

8.

What is the equation for specific heat capacity?

a)

Q=mcΔTQ=mc\Delta T

b)

Q=mcΔTQ=\frac{mc}{\Delta T}

c)

Q=ΔTmcQ=\frac{\Delta T}{mc}

d)

Q=cΔTmQ=\frac{c\Delta T}{m}

e)

Q=mΔcTQ=m\Delta cT

9.

What is the formula we use with specific latent heat?

a)

E = m×LE\ =\ m\times L

b)

c = E/(mΔƟ)

c)

E = mcΔƟ

10.

The graph shows the cooling curve of a substance. At which stages is the state changing?

a)

AB and CD

b)

BC and DE

c)

AB and EF

11.

How much energy is required to melt down a 2 kg of mercury? The latent heat of fusion is 11400 J/kg.

a)

25500 J

b)

22800 J

c)

32800 J

12.

What is the correct symbol for a LDR (light dependent resistor)?

a)
b)
c)
d)
e)
13.

What is the correct symbol for a thermistor?

a)
b)
c)
d)
e)
14.

As the light intensity increases, the resistance...

a)

increases

b)

decreases

15.

What is the primary function of a thermistor in a circuit?

a)

To store energy

b)

To amplify signals

c)

To measure temperature changes

d)

To convert AC to DC

16.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
17.
The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
a)
100.0g
b)
50.0g
c)
12.5g
d)
8.5g
18.
 Fermium-253 has a half-life of 0.334 seconds. A radioactive sample is considered to be completely decayed after 10 half-lives. How much time will elapse for this sample to be considered gone?
a)
0.334 seconds
b)
3.34 seconds
c)
1.77 seconds
d)
13.4 seconds
19.
What is the half-life of iodine-131?
a)
32 days
b)
8 days
c)
16 days
d)
24 days
20.

Geologist use the time it takes for a radioactive isotope to decay to half its original mass called a___________.

a)

radioactive decay

b)

isotope

c)

half-life

d)

carbon dating

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