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WorksheetsLaws of Nature
Total questions: 24
Worksheet time: 24mins
When only a pair of equal and opposite forces act on an object, what is the net force acting on it?
Twice the force of either object
The sum of the force on either object
The net force is zero
No way to tell from the information given
Find the net force produced by a 25-N and 20-N force when both forces act in the same direction?
5 N
15 N
45 N
20 N
If you apply a net force of 5 N on a cart with a mass of 5 kg, what is the acceleration?
25 m/s2
1.0 m/s2
10 m/s2
0 m/s2
Why will a sheet of paper fall slower than one that is wadded into a ball?
Because it is heavier
Because it is lighter
Because the wadded ball has less wind resistance
Because the sheet of paper has less wind resistance
The total energy (kinetic plus potential) of atoms and molecules that make up a substance.
Thermal energy
Heat
Temperature
Specific Heat Capacity
The thermal energy that flows from an object at higher temperature to one at a lower temperature, commonly measured in joules or calories.
Thermal energy
Heat
Temperature
Specific Heat Capacity
The quantity of matter in an object. The measure of inertia or sluggishness that an object exhibits in response to any effort to move it.
Weight
Volume
Inertia
Mass
The acceleration produced by a net force on an object is directly proportional to the net force, is in the same direction as the net force, and is inversely proportional to the mass of the object.
Newton’s 2nd Law
Ohm’s Law
2nd Law of Thermodynamics
Faraday’s Law
Heat never of itself flows from a cold substance to a hot substance.
Newton’s 2nd Law
Ohm’s Law
2nd Law of Thermodynamics
Faraday’s Law
When two values change in opposite directions, so that if one increases the other decreases by the same amount.
Directly proportional
In line with each other
Inversely proportional
Opposite forces
The quantity of space an object occupies.
Mass
Weight
Volume
Space
Motion under the influence of gravitational pull only.
Free fall
Acceleration
Gravity
Terminal Speed
The resistive force that opposes the motion or attempted motion of an object past another with which it is in contact, or through a fluid.
Friction
Free fall
Gravity
Terminal velocity
The speed at which the acceleration of a falling object terminates because air resistance balances its weight.
Friction
Gravity
Terminal Speed
Terminal Velocity
No system can have its absolute temperature reduced to zero.
Newton’s 3rd Law of Motion
Ohm’s Law
3rd Law of Thermodynamics
Coulomb’s Law
A measure of the hotness of an object, related to the average kinetic energy per molecule in the object.
Heat
Specific Heat
Temperature
Calorie
The expansion of a substance due to increased molecular motion in that substance.
Thermal expansion
Temperature
Specific Heat
Heat expansion
The force due to gravity on an object is
Volume
Weight
Mass
Specific gravity
It took 2 hours for a car to travel the distance between two cities at a velocity of 60 m/h. How many miles lie between the two cities?
120 miles
120 km
30 miles
30 km
A boy is skateboarding at a speed of 0.1 km/min. How far will he travel in 1.5 hours?
9 km
9 miles
0.15 km
0.15 miles
If the initial velocity is 10 km/h and the final velocity is 24 km/h, and the time from 10 to 24 km/h is 2 seconds, what is the acceleration?
5 km/h/s
7 km/h/s
12 km/h/s
12 km/s2
Heat energy transferring from one body to another through direct contact is called
Conduction
Convection
Radiation
Thermal Equilibrium
Local weather can partially be explained by what type of heat transfer mechanism.
Conduction
Convection
Radiation
Thermal Equilibrium
Which type of thermal energy transfer mechanism doesn’t require matter as a medium for heat transfer?
Conduction
Convection
Radiation
Thermal Equilibrium
