WorksheetsEinstein Bee (Qualifying Round)
Total questions: 15
Worksheet time: 15mins
Two forces have magnitudes of 11 newtons and 5 newtons. The magnitude of their sum could NOT be equal to which of the following values?
16 newtons
5 newtons
9 newtons
7 newtons
A ball falling vertically from rest for 3 seconds travels very nearly:
14.7 meters
29.4 meters
44.1 meters
88.2 meters
Two vibrating particles that are "out of phase" differ in the phase of their vibration by:
1/4 cycle
1/2 cycle
3/4 cycle
1 cycle
A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is:
1250 kg
2500 kg
5000 kg
10 000 kg
When a person stands on a scale in an elevator at rest, the scale reads 800 N. When the elevator is allowed to fall freely with acceleration of gravity, the scale reads one of the following. The reading in the scale is:
1600 N
800 N
400 N
0 N
Which process in the human body does not require energy input from respiration?
diffusion
maintenance of a constant body temperature
muscle contraction
passage of nerve impulses
Why do you continue to breathe faster after finishing strenuous exercise?
to deliver extra glucose to the muscles
to keep the heart beating strongly
to supply oxygen to break down lactic acid
to supply tired muscles with extra energy
Why does chronic obstructive pulmonary disease (COPD) decrease the amount of oxygen in the blood?
It causes lung cancer.
It decreases the surface area for gas exchange in the lungs.
It destroys red blood cells.
It slows down breathing rate.
Which body cells are affected by the human immunodeficiency virus?
gametes
platelets
red blood cells
white blood cells
What is the common component of the three molecules RNA, DNA, and ATP?
adenosine
hydrogen bonds
phosphate
ribose
Which of these is the weakest ligand?
Aqua
Cyanide
Ammonia
Chloride
The hydrocarbon fraction of crude oil which is used as airplane fuel contains:
1-4 carbons
10-16 carbons
>25 carbons
5-12 carbons
Which of these is a type of stereoisomerism?
Position isomerism
Chain isomerism
Geometrical isomerism
Functional group isomerism
Which of these is a transition element?
Se
Sc
Sr
S
What will be the appropriate analytical technique to find out the % abundance of naturally occurring isotopes of an element?
Mass spectrometry
IR spectroscopy
H-NMR
Atomic emission spectroscopy
