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physics and science

Total questions: 29

Worksheet time: 29mins

Name
Class
Date
1.

What are two physical properties of this basketball?

a)

It is flat and brown.

b)

It is round and bouncy.

c)

It is hard and flexible.

d)

It is purple and black.

2.

If you push or pull an object, you are using....

a)

movement

b)

position

c)

force

d)

pattern

3.

What is one way magnets are used in a house?

a)

to keep people warm

b)

to hold things together

c)

to clean floors

d)

to start a fire

4.
When is the potential energy the greatest in a roller coaster?
a)
a. at the bottom of the first hill
b)
b. at the top of the first hill
c)
c. at the top of the second hill
d)
d. at the bottom of the second hill
5.

When you eat fruits and vegetables, chemical bonds are releasing stored energy, this is...

a)

a. thermal energy

b)

b. sound energy

c)

c. electrical energy

d)

d. chemical energy

6.
After an energy conversion, you end up with the same total amount of energy as the original amount of potential energy. Which of the following laws explains this rule?
a)
a. law of energy changes
b)
b. law of conservation of energy
c)
c. law of power and energy
d)
d. law of potential energy
7.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
8.
The Gulf Stream is a current that brings warm ocean water from the south to the north.
a)
conduction
b)
convection
c)
radiation
9.
Which direction will the heat flow while this ice cap melts?
a)
there is no heat transfer
b)
from the icecap to the water
c)
from the water to the icecap
10.

The change in an object’s position with respect to time and in comparison to the position of other objects used as reference points.

a)

motion

b)

speed

c)

velocity

d)

acceleration

11.

the capacity necessary to do work; controls the amount of change that can occur within a system

a)

speed

b)

joule

c)

momentum

d)

energy

12.

the quantity or strength of an object's motion; mass x velocity

a)

speed

b)

force

c)

energy

d)

momentum

13.
Planets orbit the Sun in a shape called a(n)
a)
circle
b)
ellipse
c)
focus
d)
perihelion
14.
Where is the planet moving faster
a)
Position A to B
b)
Position B to C
c)
Position H to I
d)
Position I to J
15.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction
16.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__Al + __O2--> __Al2O3
a)
4,1 --> 2
b)
4,3 --> 4
c)
3,4 --> 1
d)
4,3 --> 2
17.
What is the right ratio of chemicals for the BCE (Balanced Chemical Equation)?__AgNO3 + __H2S --> __Ag2S+ __HNO3
a)
2,1 --> 1,2
b)
1,2 --> 1,1
c)
1,2 --> 1,2
d)
1,2 --> 2,1
18.

Find the molarity of 186.55 g of sucrose, C12H22O11 (MM = 342) in 250 mL of water.

a)

2.18 M

b)

0.746 M

c)

1.18 M

d)

0.545 M

19.

How many grams of calcium hydroxide are needed to produce 500. ml of 1.66 M calcium hydroxide solution?

a)

38.7 g

b)

61.5 g

c)

94.0 g

d)

19.7 g

20.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
d)
law of conservation of mass
21.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
22.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
23.

Fossil Fuels are

a)

pieces of rock that have been compacted many times

b)

rock that contains 50% plant and animal remains

c)

metamorphic rock

d)

fuels that form from the remains of plant and other organisms that were buried and altered over million of years

24.

The four factors that contribute to the formation of fossil fuels are

a)

energy, sunlight, food and water

b)

natural gas, oil, and coal

c)

organic matter, high temperatures, time and pressure

d)

plastic, medicine, cosmetics and jewelry

25.

Are fossil fuels renewable or non renewable?

a)

renewable

b)

non renewable

26.

Energy of running water is exploited to run turbines in

a)

hydroelectric power stations

b)

railway stations

c)

oceans

d)

rural area

27.

Boiling water reactor and pressurised water reactors are:

a)

Nuclear reactor

b)

Solar reactor

c)

Steam power plant

d)

Biogas reactor

28.

Which of the following atomic power station is located in Tamil Nadu?

a)

Kaiga power plant

b)

Tarapur power station

c)

Kalpakkam power station

d)

Kakrapar power station

29.

A boiling water reactor uses which of the following as fuel?

a)

U 234

b)

U 235

c)

Enriched uranium

d)

Plutonium

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