What is the formula for density?

Density (ρ) = Mass (m) / Volume (V)

What is the SI unit of density?

Kilograms per cubic meter (kg/m³)

What is speed defined as?

Speed is the distance traveled over a specific time.

What is the formula for calculating speed?

Speed = Change of distance / Change of time

What is acceleration?

Acceleration is the rate at which an object's speed changes.

What is a free-fall acceleration?

The acceleration of an object falling under the influence of gravity alone.

What is projectile motion?

Projectile motion is the motion of an object thrown into the air, affected by gravity.

What is the difference between a mixture and a compound?

A mixture contains two or more substances that retain their properties, while a compound is a substance formed from two or more elements chemically combined.

What is a chemical reaction?

A process where substances combine or break apart to form new substances.

What is the difference between oxidation and reduction?

Oxidation involves the addition of oxygen or loss of electrons, while reduction involves the removal of oxygen or gain of electrons.

What is the atomic number of an element?

The atomic number is the number of protons in the nucleus of an atom.

What is the mass number of an atom?

The mass number is the total number of protons and neutrons in the nucleus.

What is a natural satellite?

A natural satellite is an object in orbit around a planet, like the Moon around Earth.

What is the difference between a comet and a meteor?

A comet is a celestial object made of ice and dust that forms a tail when near the Sun, while a meteor is a small particle that burns up in the Earth's atmosphere.

What is the Milky Way?

The Milky Way is the galaxy that contains our Solar System.

A nebula is a giant cloud of gas and dust in space, often the birthplace of stars.

What is a black hole?

A black hole is a region in space where the gravitational pull is so strong that nothing, not even light, can escape.

What is the difference between metals and nonmetals?

Metals are typically good conductors of heat and electricity, while nonmetals are poor conductors.

A molecule is a group of two or more atoms bonded together.

A compound is a substance formed when two or more elements chemically combine.

What is the significance of the periodic table?

The periodic table organizes elements based on their properties and atomic structure.

What is a reducing agent?

A reducing agent is a substance that donates electrons in a redox reaction.

What is an oxidizing agent?

An oxidizing agent is a substance that accepts electrons in a redox reaction.

What is the role of gravity in the Solar System?

Gravity keeps planets in orbit around the Sun and governs the motion of celestial bodies.

What is the difference between a natural and artificial satellite?

A natural satellite is a celestial body like the Moon, while an artificial satellite is a man-made object launched into orbit.

What is the significance of the Big Bang theory?

The Big Bang theory explains the origin of the universe as a massive expansion from a singular point.

What is the difference between an endothermic and exothermic reaction?

An endothermic reaction absorbs heat, while an exothermic reaction releases heat.

What is the role of air resistance in free fall?

Air resistance opposes the motion of falling objects, affecting their acceleration.

What is the significance of the gravitational pull of the Earth?

The gravitational pull of the Earth keeps objects grounded and influences their motion.

What is the role of the Sun in the Solar System?

The Sun provides light and heat, and its gravitational pull keeps the planets in orbit.

What is the difference between a speed-time graph and a distance-time graph?

A speed-time graph shows how speed changes over time, while a distance-time graph shows how distance changes over time.

What is the significance of the gradient in a distance-time graph?

The gradient represents the speed of the object.

What is the significance of the area under a speed-time graph?

The area under the graph represents the distance traveled by the object.

What is the difference between uniform and non-uniform acceleration?

Uniform acceleration means the rate of change of speed is constant, while non-uniform acceleration means it varies.

What is the role of elements in the composition of matter?

Elements are the basic building blocks of matter, each with unique properties and behaviors.

What is the significance of the periodic table in chemistry?

The periodic table organizes elements based on their atomic structure and properties, aiding in the study of chemistry.

What is the role of electrons in chemical bonding?

Electrons are involved in forming bonds between atoms, determining the properties of compounds.

What is the role of artificial satellites in modern society?

Artificial satellites are used for communication, weather monitoring, navigation, and scientific research.

What is the significance of the Earth's rotation?

The Earth's rotation causes day and night cycles and influences weather patterns.

What is the role of chemical reactions in everyday life?

Chemical reactions are involved in cooking, digestion, energy production, and many other daily processes.

What is the role of chemical bonds in compounds?

Chemical bonds hold atoms together in compounds, determining their properties.

What is the difference between a star and a planet?

A star generates its own light through nuclear fusion, while a planet reflects light from a star.

Flashcards 2F Flashcards

Student preview

50 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Who is known for revolutionizing measurements with the pendulum clock?

Back

Galileo Galilei

2.

FLASHCARD QUESTION

Front

What are the three basic measurements in physics?

Back

Time, Length, and Mass

3.

FLASHCARD QUESTION

Front

What is the SI unit for mass?

Back

Kilogram (kg)

4.

FLASHCARD QUESTION

Front

What is the SI unit for length?

Back

Meter (m)

5.

FLASHCARD QUESTION

Front

What is the SI unit for time?

Back

Second (s)

6.

FLASHCARD QUESTION

Front

What is the difference between an analogue clock and a digital clock?

Back

An analogue clock has hands that move around a face, while a digital clock displays time in numerals.

7.

FLASHCARD QUESTION

Front

What instrument is used to measure very small lengths?

Back

Micrometre screw gauge

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