Friday

Question 1

What is the unit of force in the International System of Units (SI)?

Answer 1

Newton

Question 2

True or False: An object at rest will stay at rest unless acted upon by an external force.

Answer 2

True

Question 3

Fill in the blank: The formula for calculating speed is _____.

Answer 3

distance/time

Question 4

What is the acceleration of an object in free fall on Earth (approximately)?

Answer 4

9.81 m/s²

Question 5

Which law states that for every action, there is an equal and opposite reaction?

Answer 5

Newton’s Third Law of Motion

Question 6

True or False: Mass and weight are the same thing.

Answer 6

False

Question 7

What is the formula for calculating gravitational potential energy?

Answer 7

PE = mgh

Question 8

What does ‘m’ represent in the gravitational potential energy formula?

Answer 8

mass

Question 9

Multiple Choice: What is the primary source of energy for the Earth?

Answer 9

The Sun

Question 10

Fill in the blank: The law of conservation of energy states that energy cannot be created or _____.

Answer 10

destroyed

Question 11

What is the term for the energy of motion?

Answer 11

Kinetic energy

Question 12

True or False: A heavier object will fall faster than a lighter object in a vacuum.

Answer 12

False

Question 13

What is the term for a push or pull on an object?

Answer 13

Force

Question 14

Multiple Choice: Which of the following is a vector quantity?

Answer 14

Velocity

Question 15

What does ‘g’ represent in the gravitational potential energy formula?

Answer 15

Acceleration due to gravity

Question 16

Fill in the blank: Pressure is defined as force per _____.

Answer 16

area

Question 17

What is the SI unit of pressure?

Answer 17

Pascal

Question 18

True or False: All forms of energy can be converted into each other.

Answer 18

True

Question 19

What is the formula for calculating work done?

Answer 19

Work = force × distance

Question 20

What is the unit of energy?

Answer 20

Joule

Question 21

Multiple Choice: Which of the following is NOT a form of energy?

Answer 21

Magnetism

Question 22

Fill in the blank: The process by which plants convert sunlight into energy is called _____.

Answer 22

photosynthesis

Question 23

What is kinetic energy dependent on?

Answer 23

Mass and velocity

Question 24

True or False: Sound travels faster in air than in water.

Answer 24

False

Question 25

What type of energy is stored in a compressed spring?

Answer 25

Elastic potential energy

Question 26

Multiple Choice: Which of the following is an example of potential energy?

Answer 26

Water stored in a dam

Question 27

Fill in the blank: The total energy in a closed system remains _____.

Answer 27

constant

Question 28

What is the difference between mass and weight?

Answer 28

Mass is the amount of matter, weight is the force of gravity on that mass.

Question 29

True or False: An object in motion will continue in motion at the same speed and in the same direction unless acted upon by an unbalanced force.

Answer 29

True

Question 30

What is the term for the rate of change of velocity?

Answer 30

Acceleration

Question 31

Multiple Choice: Which of the following is an example of a non-contact force?

Answer 31

Gravitational force

Question 32

Fill in the blank: The force of gravity depends on the mass of the objects and the _____.

Answer 32

distance between them

Question 33

What is the term for the energy associated with the position of an object in a gravitational field?

Answer 33

Gravitational potential energy

Question 34

True or False: Friction always opposes motion.

Answer 34

True

Question 35

What is the term for the tendency of an object to resist changes in its state of motion?

Answer 35

Inertia

Question 36

Multiple Choice: Which of the following is an example of energy transformation?

Answer 36

A battery powering a flashlight

Question 37

Fill in the blank: The measure of how much space an object occupies is called _____.

Answer 37

Volume

Question 38

What is the SI unit of mass?

Answer 38

Kilogram

Question 39

True or False: The higher an object is above the ground, the more gravitational potential energy it has.

Answer 39

True

Question 40

What is the measure of the average kinetic energy of particles in a substance?

Answer 40

Temperature

Question 41

Multiple Choice: Which of the following is a renewable source of energy?

Answer 41

Solar energy

Question 42

Fill in the blank: The energy of a moving object is called _____.

Answer 42

Kinetic energy

Question 43

What does the term 'work' refer to in physics?

Answer 43

The transfer of energy through force applied over a distance.

Question 44

True or False: Energy can change forms but cannot be created or destroyed.

Answer 44

True

Question 45

What is the term for the energy stored in an object due to its position or arrangement?

Answer 45

Potential energy

Question 46

Multiple Choice: Which of the following is a characteristic of a sound wave?

Answer 46

It requires a medium to travel through

Question 47

Fill in the blank: The force that pulls objects toward the Earth is called _____.

Answer 47

Gravity

Question 48

What is the unit of measurement for energy in joules?

Answer 48

Joule

Question 49

True or False: A heavier object will always have more kinetic energy than a lighter object at the same speed.

Answer 49

True