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WorksheetsBiophysics
Total questions: 30
Worksheet time: 47mins
When an object spins it is said to undergo ______________.
rotational motion
angular momentum
axis differentiation
rotational axis
An athlete can jump higher off a solid surface because it opposes his body with as much force as he is able to generate, in contrast to sand or other unstable surface.
This is an example of one of Newton's Laws, which one?
1st
2md
3rd
What are the two factors that affect the momentum of an object?
speed and velocity
time and mass
distance and displacement
mass and velocity
ANGULAR MOMENTUM = MOMENT OF INERTIA X .........................
speed
angular velocity
radius
angular impulse
Angular momentum is conserved when no outside torques act on an object. As the moment of inertia decreases, the angular rotation has to .................. to keep the same angular momentum
decrease
increase
remain constant
At the end of a dive, the athlete opens up her body to increase___________________________ , which simultaneously decreases in___________________________ in preparation for entering the water.
Moment of Inertia, Angular Velocity
Angular Velocity, Moment of Inertia
Angular Velocity, Angular momentum
Stars originate as large bodies of slowly rotating gas. Because of gravity, these clumps of gas slowly decrease in size. What happens to the angular speed of the star as it shrinks?
It rotates faster.
It rotates slower.
It starts to accelerate in the forward direction.
The rotation rate stays the same.
What is the equation used in Newton's law of acceleration?
a = f x m
f = m x a
m = f x a
For a first class level, the fulcrum is placed
Between the effort/force and resistance/weight
Effort/force in the middle with fulcrum on one end and resistance/weight on the other
Resistance/weight in the middle with fulcrum and effort/force on the ends
Standing on your toes is an example of what lever
1st class
2nd class
3rd class
Which measure has no scalar equivalent?
displacement
velocity
acceleration
What quantity or measure is represented or measured in Newtons, represented as N?
speed
mass
acceleration
distance
weight
Newton's first law of motion states that 'an object will remain at rest or in it's current state of motion unless ...' what?
Acted upon by an unbalanced force.
It's mass is too great.
It is pushed, kicked or hit.
There is no gravity present.
What type of allometry is described on the image?
neutral
negative
positive
Kleiber’s law, or the 1/2 -power law scaling of the metabolic rate with body mass, is considered one of the few quantitative laws in biology, yet its physiological basis remains unknown.
true
false
Choose the correct prefix for the value given below.
95.8 x 106 Hz
95.8 kHz
95.8 THz
95.8 GHz
95.8 MHz
Choose the correct scientific notation to the value given below.
200 nm
(nm = nanometers)
200 x 10−3 m
200 x 10−6 m
200 x 10−9 m
200 x 10−12 m
