Sports
How many players are on a football team on the field at one time?
There are 22 players total on the field at one time, with 11 players per team.
What is the largest continent by area?
Asia
What is the SI unit of force?
Newton (N)
What is the chemical symbol for oxygen?
The chemical symbol for oxygen is O
What organ pumps blood around the human body?
The heart
Which country has won the most FIFA world cups?
Brazil
What is the capital of australia?
Canberra
What is the approximate acceleration due to gravity on earth?
9.8 m/s²
What is the pH of a neutral solution at 25°C?
7
What is the basic structural unit of life?
Cells
In tennis, what is the score called when both players have 40 points?
Deuce
which two countries share the longest international land border?
Canada and the United states
A 2kg object accelerates at 5 m/s² . What force acts on it?
10 N
What type of bond involves the sharing of electrons?
Covalent bonding
Which organelle is primarily responsible for aerobic respiration?
Mitochondria
A basketball player scores 30 points in 10 minutes. What is the average scoing ate pe minute?
3 points per minute
Which country has territory in both europe and asia and is separated by the bosphorus strait?
Turkey
A 10 Ω resistor is connected to a 20 V supply. What current flows through it?
A current of 2 A flows through the resistor
What is the oxidation state of sulfur in H_2SO_4?
+6
Explain why red blood cells are well suited to transporting oxygen.
They're packed with hemoglobin (which binds oxygen), and their lack of a nucleus, biconcave shape, and flexibility maximize surface area and space for efficient oxygen uptake and delivery.
A runner completes 400 m in 50 s. If their speed remains constant, how long would they take to complete 1 km?
125 seconds
Which river flows through vienna, budapest and belgrade?
Danube river
A projectile is launched horizontally from a 45 m-high cliff at 20 m/s. Ignoring air resistance, approximately how far from the cliff does it land?
The projectile lands approximately 60 meters away from the base of the cliff.
A compound contains 40% carbon, 6.7% hydrogen and 53.3% oxygen by mass. Determine its empirical formula.
CH2O
A heterozygous tall pea plant is crossed with a heterozygous tall pea plant. What proportion of the offspring are expected to be short?
1/4 or 25%