Font size
WorksheetsPhysics and Chemistry - Unit 1
Total questions: 22
Worksheet time: 20mins
(a) studies changes in matter that don't affect its nature.
Say which of the following is studied in PHYSICS
Lighting a candle
Heating up water
Digesting a cheese sandwich
Baking a cake
CHEMISTRY studies the (a) of matter and changes that affect its nature.
Say which of the following is studied in CHEMISTRY
Shredding paper
Melting ice
Chopping wood
Rutting banana
Mass, volume and temperature are SPECIFIC properties of a matter.
True
False
Density is
GENERAL property
SPECIFIC property
What is the first step of the scientific method?
Experimentation
The hypothesis
Observation
Analysing the results
A hypothesis is a guess about a real event.
True
False
What do we use to analyze the results?
Tables and graphs
Senses
Predictions
Scientific publications must include the following elements:
Title and introduction
Methodology
Results
Conclusion
All of the them
Which of the following QUANTITY-UNIT (SI) relationships is correct?
Temperature - Celsius
Mass - Kilogram
Time - hour
Length - kilometer
Which of the following are quanties?
Speed
Kelvin
Pressure
Density
Convert the following unit: 30.57 dg to hg
0.03057 hg
0.3057 hg
30570 hg
0.003057 hg
Convert the following unit: 0.076 m2 to mm2
760 mm2
76 mm2
76000 mm2
0.000076 mm2
350.4 L = 350400 m3
True
False
A car is travelling at 90 km/h. Express this in m/s.
324 m/s
2.5 m/s
1500 m/s
25 m/s
The density of the oil is 0.92 g/ml. Express this in International System (SI) units.
0.92 g/cm3
9200 kg/m3
920 kg/m3
920 g/L
The number 456,032,000 written using SCIENTIFIC NOTATION is:
4.56 · 108
4.56032 · 108
4.56032 · 10-8
4.56032 · 103
The number 2.7508 · 10-3 written out of full is:
A snail moves at 20 mm/s. Calculate its speed in km/h and then write your answer using SCIENTIFIC NOTATION.
0.072 km/h
7.2 · 10-2 km/h
72 km/h
7.2 · 102 km/h
Regarding the safety standards of the laboratory, say which of the following statements is false:
Do not eat, drink or chew gum.
Always use gloves and safety goggles.
Do not touch, smell or taste any laboratory products.
Wash your hands throughly before leaving the lab.
Match this symbol with the hazard it represents
Explosive
Toxic
Corrosive
Harmful or irritant
