NEW
Font size
WorksheetsScience Post-Test
Total questions: 50
Worksheet time: 25mins
What is a force?
A shape changer
A push or a pull
A stationary object
A type of energy
Which of the following is an example of a contact force?
Frictional Force
Gravity
Electromagnetic Force
Nuclear Force
Who is credited with discovering gravity?
Galileo Galilei
Isaac Newton
Albert Einstein
Nikola Tesla
Which force keeps planets in orbit?
Electromagnetic force
Applied force
Gravitational force
Frictional force
What is the value of acceleration due to gravity on Earth?
8.9 m/s²
10.0 m/s²
9.8 m/s²
12.5 m/s²
What does acceleration refer to?
The rate of change of distance
The rate of change of velocity
The rate of motion
A constant speed
Which of the following describes displacement?
The total length of a path taken
The straight-line distance between two points
The speed of an object
The time taken to cover a distance
What is a scalar quantity?
A quantity with only direction
A quantity with only magnitude
A quantity with both magnitude and direction
A vector
What is a vector quantity?
A quantity with magnitude and direction
A quantity with magnitude only
A measure of force
The rate of motion
What force holds the protons and neutrons within the nucleus?
Gravitational Force
Electromagnetic Force
Nuclear Force
Applied Force
What is the primary function of friction?
To pull objects toward the center of the Earth
To oppose motion between surfaces
To support objects in contact with surfaces
To increase the speed of an object
What does speed measure?
The force applied to an object
The distance traveled per unit time
The acceleration of an object
The change in velocity
Who formulated the laws of motion?
Isaac Newton
Galileo Galilei
Albert Einstein
Aristotle
What type of force is responsible for keeping a satellite in orbit?
Electromagnetic force
Gravitational force
Frictional force
Normal force
What is inertia?
The rate of velocity change
The tendency of an object to resist changes in its motion
The acceleration due to gravity
A type of electromagnetic force
What is the SI unit for mass?
Kilogram
Meter
Newton
Joule
What is the force of attraction between objects due to their masses?
Electromagnetic force
Nuclear force
Gravitational force
Applied force
What is the formula for calculating force?
F = ma
F = mv
F = d/t
F = v/t
What is nuclear fission?
The splitting of a heavy nucleus
The fusion of light nuclei
The attraction of electrons
The repulsion of protons
What is the primary difference between speed and velocity?
Velocity includes direction
Speed includes force
Speed includes direction
Velocity is faster
How does road safety relate to speed limits?
Speed limits are only suggestions
Observing speed limits can prevent accidents
Speed limits have no impact on safety
Speed limits should be ignored in emergencies
What is the primary cause of road accidents related to speed?
Not following speed limits
Excessive vehicle maintenance
Lack of road signs
Ineffective traffic signals
What does a non-contact force involve?
Interaction without physical touch
Direct physical contact
Force applied through a medium
Force generated by friction
What is the main difference between scalar and vector quantities?
Scalar quantities include direction
Vector quantities include both magnitude and direction
Scalar quantities are faster
Vector quantities are always constant
What does distance measure?
The total amount of ground covered
The straight-line distance between two points
The change in position from start to end
The speed of an object
Which of the following correctly describes displacement?
The total length of the path traveled by an object
The straight-line distance and direction from the starting point to the ending point
The average speed over a period of time
The rate of change of speed
What does the particle theory of matter state?
Matter is static and not in motion
Matter is made of large particles only
Matter consists of small particles in constant motion
Matter does not have attractive forces
In solids, how are particles arranged?
Tightly packed and vibrating in place
Far apart and moving freely
Not in contact with each other
Arranged in random patterns
What type of energy is thermal energy?
Chemical energy
Energy related to the motion of particles
Electrical energy
Mechanical energy
How does heat flow between bodies?
From higher to lower temperature
From lower to higher temperature
From one body to another without temperature difference
Randomly without regard to temperature
What does temperature measure?
The degree of 'hotness' or 'coldness'
The total energy of an object
The amount of heat transferred
The speed of particles in a substance
Which temperature scale was invented by Anders Celsius?
Fahrenheit
Kelvin
Celsius
Rankine
How does adding heat to a substance affect its particles?
Particles move faster
Particles move slower
Particles stop moving
Particles stay the same speed
What happens at the melting point of a substance?
A liquid turns into a gas
A solid turns into a liquid
A gas turns into a liquid
A liquid turns into a solid
What is convection?
Transfer of heat by direct contact
Transfer of heat through radiation
Transfer of heat by the movement of fluids
Transfer of heat by conduction
Which is an example of conduction?
Heat from the sun warming the Earth
Warm air rising in a room
Touching a hot pan and feeling the heat
Heat traveling through space
How does an induction stove work?
By using an open flame
By transferring energy through a magnetic field
By heating the air around the pot
By using electrical resistance
What is a thermal insulator?
A material that slows down or blocks heat transfer
A material that transfers heat easily
A material that absorbs heat
A material that increases energy transfer
How do convection currents help aquatic organisms?
By mixing nutrients and dissolved gases
By blocking harmful substances
By cooling the water surface
By increasing the water temperature
What is a common use of thermal insulators in everyday life?
Reducing unwanted heat transfer in homes
Conducting heat efficiently in cooking
Allowing heat to pass through easily
Increasing heat transfer in electronics
What is one way to reduce greenhouse gas emissions?
Using alternative energy sources like solar power
Increasing fossil fuel consumption
Cutting down more trees
Burning more coal and oil
Why are metals generally good thermal conductors?
They have a low density
Their particles are tightly packed and allow efficient heat transfer
They absorb heat quickly
They prevent heat from passing through
What does the Celsius scale measure?
Temperature of metals
Heat energy
Temperature in degrees Celsius
Kinetic energy of particles
How does convection work in fluids like water?
Hot water rises and cold water sinks, creating a current
Heat is transferred through direct contact
Heat moves through waves
Heat is absorbed by the water's surface
What is the purpose of thermal insulators in cooking?
To conduct heat better
To absorb heat
To prevent heat from escaping
To increase heat transfer
What does the Kelvin scale measure?
Kinetic energy
Heat energy
Temperature
Speed of particles
How does adding heat affect the phase of a substance?
It can change the substance from solid to liquid or liquid to gas
It only increases the temperature without changing phase
It decreases the temperature and solidifies the substance
It makes the substance colder and denser
What is the role of the atmosphere in heat transfer?
It blocks all heat from the sun
It traps some heat and maintains Earth's temperature
It transfers heat to space
It cools down the Earth's surface
What is an example of a thermal conductor?
Metal spoon
Wood
Rubber
Cloth
What is the benefit of using solar energy in the Philippines?
It increases the cost of electricity
It reduces electricity bills and helps in energy supply
It causes the temperature to drop significantly
It makes traditional energy sources less efficient
