Quiz about Physics Final Review Spring 2025

Question 1

1. Physics is considered the basic science because:

Accepted Answer

it studies the fundamental laws of nature.

Answer

it deals only with living things.

Answer

it is the oldest science.

Answer

it is not related to other sciences.

Question 2

Why are scientific methods important?

Accepted Answer

Because they provide a systematic way to investigate phenomena.

Answer

Because they are based on opinions.

Answer

Because they ignore evidence.

Answer

Because they are unorganized.

Question 3

Give a description of a hypothesis.

Accepted Answer

A possible explanation for an observation or problem that can be tested.

Answer

A proven fact that cannot be changed.

Answer

A list of materials used in an experiment.

Answer

A summary of the results of an experiment.

Question 4

What happens to a hypothesis, when scientists find contradictory evidence?

Accepted Answer

It is revised or rejected.

Answer

It is accepted as fact.

Answer

It is ignored.

Answer

It becomes a law.

Question 5

What causes a hypothesis, law or principle to be adjusted or given up?

Accepted Answer

New evidence or observations

Answer

Lack of interest

Answer

Personal opinions

Answer

Technological advancements only

Question 6

What is a force?

Accepted Answer

A push or pull on an object

Answer

A type of energy

Answer

A form of matter

Answer

A measurement of speed

Question 7

What is a net force?

Accepted Answer

The total force acting on an object

Answer

The speed of an object

Answer

The direction of motion

Answer

The mass of an object

Question 8

What effect does a net force have on an object?

Accepted Answer

It causes the object to change its motion.

Answer

It has no effect on the object.

Answer

It makes the object disappear.

Answer

It changes the object's color.

Question 9

Rohan is pushing a shopping cart in a grocery store. What is the effect on the shopping cart when the net force is 0?

Accepted Answer

The shopping cart remains at rest or moves with constant velocity.

Answer

The shopping cart accelerates.

Answer

The shopping cart changes direction.

Answer

The shopping cart increases in mass.

Question 10

A vector is defined as:

Accepted Answer

A quantity that has both magnitude and direction

Answer

A quantity that has only magnitude

Answer

A quantity that has only direction

Answer

A quantity that has neither magnitude nor direction

Question 11

A vector quantity is:

Accepted Answer

a quantity with both magnitude and direction

Answer

a quantity with only magnitude

Answer

a quantity with only direction

Answer

a quantity with neither magnitude nor direction

Question 12

A scalar quantity is:

Accepted Answer

a quantity with only magnitude

Answer

a quantity with both magnitude and direction

Answer

a quantity with only direction

Answer

a quantity with no magnitude or direction

Question 13

Mia is pushing a shopping cart at the grocery store. The cart's state of motion can be changed by:

Accepted Answer

Applying a force

Answer

Changing its acceleration

Answer

Measuring its mass

Answer

Increasing its temperature

Question 14

Mechanical equilibrium is:

Accepted Answer

A state where an object is at rest or moving with constant velocity and the net force acting on it is zero.

Answer

A state where an object is accelerating due to a net force.

Answer

A state where only gravitational force acts on an object.

Answer

A state where an object is rotating with increasing speed.

Question 15

James is pushing a shopping cart in a supermarket. The cart is in mechanical equilibrium when:

Accepted Answer

the net force acting on it is zero.

Answer

it is moving at a constant speed.

Answer

it is at rest.

Answer

it is accelerating.

Question 16

The ______________ is the upward force that balances the weight of an object on a surface.

Accepted Answer

Support force

Answer

Friction force

Answer

Tension force

Answer

Gravitational force

Question 17

Aria places a book on a table. For the book at rest on the horizontal surface of the table, the support force is equal to:

Accepted Answer

the weight of the book

Answer

the mass of the book

Answer

zero

Answer

the applied force

Question 18

Kai is standing on a bathroom scale. What is the net force on the scale when Kai weighs 110 pounds?

Accepted Answer

0 pounds

Answer

110 pounds

Answer

220 pounds

Answer

55 pounds

Question 19

Suppose you stand on two bathroom scales with your weight EVENLY distributed between the two scales. What is the reading on each of the scales?

Accepted Answer

Half your weight

Answer

Your full weight

Answer

Double your weight

Answer

Zero

Question 20

You stand on two bathroom scales with your weight EVENLY distributed between the two scales. What happens when you stand with more of your weight on one foot than the other?

Accepted Answer

You feel more pressure on that foot

Accepted Answer

The reading on one scale decreases.

Accepted Answer

The reading on the scale you are leaning towards will increase.

Answer

There is no change.

Question 21

Grace is riding her bicycle on a straight path. What are the conditions on her bicycle since it is in dynamic equilibrium?

Accepted Answer

The bicycle moves with constant velocity and all forces are balanced.

Answer

The bicycle is at rest and all forces are balanced.

Answer

The bicycle accelerates and all forces are unbalanced.

Answer

The bicycle moves in a circle with increasing speed.

Question 22

What do vectors represent when added to a diagram that shows a tug of war or you and a friend pushing a car that is out of gas?

Accepted Answer

The direction and magnitude of forces

Answer

The speed of the objects

Answer

The mass of the objects

Answer

The distance between the objects

Question 23

The resultant of two vectors can be found by:

Accepted Answer

Using the parallelogram law or triangle law

Answer

Adding their magnitudes directly

Answer

Multiplying their magnitudes

Answer

Subtracting their magnitudes

Question 24

The equilibrium rule states that:

Accepted Answer

The sum of all forces acting on an object is zero.

Answer

The acceleration of an object is always constant.

Answer

The velocity of an object is always increasing.

Answer

The mass of an object remains unchanged.

Question 25

What is the net force on a car that is being pushed by you with 35 N of force forward and your friend pushing with 20 N of force forwards?

Accepted Answer

55 N forward

Answer

15 N forward

Answer

35 N forward

Answer

20 N forward

Question 26

Why can't the strong man pull hard enough to make the chain perfectly straight?

Accepted Answer

Because the resultant of the chain tensions is equal to the weight of the book.

Answer

Because the chain tensions are too much.

Answer

Because the man is not strong enough.

Answer

Because the chain is too short.

Question 27

Two vertical chains are used to hold up a 1000-N log. One chain has a tension of 400 N. The tension in the other chain is:

Accepted Answer

600 N

Answer

400 N

Answer

500 N

Answer

1000 N

Question 28

If you are pushing a box to the left with 10 N of force and your sibling is pushing to the right with 2 N, what is the net force on the box and in which direction does it move?

Accepted Answer

8 N to the left

Answer

12 N to the left

Answer

8 N to the right

Answer

12 N to the right

Question 29

Who first suggested that a force is needed to keep an object in motion only when friction is present?

Accepted Answer

Galileo Galilei

Answer

Aristotle

Answer

Nicolaus Copernicus

Answer

Isaac Newton

Question 30

Friction is:

Accepted Answer

a force that opposes motion between two surfaces in contact

Answer

a type of energy

Answer

a measure of mass

Answer

a form of heat

Question 31

Galileo experimented with _____ to test his ideas of motion and friction.

Accepted Answer

pendulums

Accepted Answer

inclined planes

Answer

cannon balls

Answer

clocks

Question 32

Inertia is:

Accepted Answer

the tendency of an object to resist a change in its state of motion

Answer

the force that moves objects

Answer

the energy possessed by a moving object

Answer

the rate of change of velocity

Question 33

According to Galileo, a force is needed to keep an object moving only when:

Accepted Answer

there is friction or resistance.

Answer

there is no friction.

Answer

the object is at rest.

Answer

the object is in free fall.

Question 34

What does the law of inertia suggest about objects at rest?

Accepted Answer

They remain at rest unless acted upon by an external force.

Answer

They start moving on their own.

Answer

They change direction continuously.

Answer

They accelerate without any force.

Question 35

What does the law of inertia suggest about objects in motion?

Accepted Answer

They remain in motion unless acted upon by an external force.

Answer

They stop immediately after the force is removed.

Answer

They change direction on their own.

Answer

They accelerate without any force.

Question 36

The difference between the way that Aristotle thought about motion and what we know about motion is:

Accepted Answer

Aristotle believed objects need a force to keep moving, while we know objects in motion stay in motion unless acted on by a force.

Answer

Aristotle believed objects in motion stay in motion unless acted on by a force, while we know objects need a force to keep moving.

Answer

Both Aristotle and modern science agree that objects in motion stay in motion without any force.

Answer

Aristotle thought motion was caused by gravity only, while we know it is caused by electricity.

Question 37

The relationship between mass and inertia is that:

Accepted Answer

Objects with more mass have more inertia.

Answer

Objects with less mass have more inertia.

Answer

Mass and inertia are unrelated.

Answer

Inertia only depends on speed, not mass.

Question 38

Mass is:

Accepted Answer

The amount of matter in an object

Answer

The force of gravity on an object

Answer

The volume of an object

Answer

The weight of an object

Question 39

Mass is NOT:

Accepted Answer

Dependent on gravity

Answer

A measure of the amount of matter in an object

Answer

Measured in kilograms

Answer

A scalar quantity

Question 40

Weight is:

Accepted Answer

The force with which gravity pulls an object

Answer

The amount of matter in an object

Answer

The volume of an object

Answer

The density of an object

Question 41

1 kg = ______________?

Accepted Answer

1000 grams

Answer

100 grams

Answer

10 grams

Answer

1 gram

Question 42

The law of inertia applies to objects in motion by stating that:

Accepted Answer

Objects in motion stay in motion unless acted upon by an external force.

Answer

Objects in motion will eventually stop on their own.

Answer

Objects in motion change direction automatically.

Answer

Objects in motion lose mass over time.

Question 43

An object is said to be moving relative to another object when:

Accepted Answer

It changes position with respect to that object.

Answer

It remains stationary with respect to that object.

Answer

Both objects are at rest.

Answer

Both objects are moving at the same speed in the same direction.

Question 44

How can you tell if an object is moving?

Accepted Answer

By checking if its position changes over time.

Answer

By checking its color.

Answer

By checking its temperature.

Answer

By checking its weight.

Question 45

The SI units of speed are:

Accepted Answer

meters per second (m/s)

Answer

kilograms (kg)

Answer

seconds (s)

Answer

newtons (N)

Question 46

The difference between 'instantaneous speed' and 'average speed' is:

Accepted Answer

Instantaneous speed is the speed at a specific moment, while average speed is the total distance divided by total time.

Answer

Instantaneous speed is always greater than average speed.

Answer

Average speed is measured at a specific moment, while instantaneous speed is over a period of time.

Answer

There is no difference between instantaneous speed and average speed.

Question 47

1 mile = ______________ kilometers

Accepted Answer

1.609 kilometers

Answer

2.000 kilometers

Answer

0.750 kilometers

Answer

1.000 kilometers

Question 48

How do you calculate speed?

Accepted Answer

By dividing distance by time

Answer

By multiplying distance and time

Answer

By adding distance and time

Answer

By subtracting time from distance

Question 49

What is the average speed of a car if it travels 150 kilometers in 2 hours?

Accepted Answer

75 km/h

Answer

50 km/h

Answer

100 km/h

Answer

150 km/h

Question 50

Velocity is:

Accepted Answer

The rate of change of displacement with time

Answer

The total distance traveled

Answer

The amount of matter in an object

Answer

The force acting on an object

Question 51

The difference between speed and velocity is:

Accepted Answer

Speed is a scalar quantity, while velocity is a vector quantity.

Answer

Speed and velocity are both vector quantities.

Answer

Speed measures direction, while velocity does not.

Answer

There is no difference between speed and velocity.

Question 52

Constant velocity is:

Accepted Answer

A speed that remains the same in a straight line

Answer

A speed that remains the same

Answer

A speed that increases continuously

Answer

A speed that decreases continuously

Question 53

Velocity can change in which 2 ways?

Accepted Answer

By changing speed and direction

Answer

By changing mass and volume

Answer

By changing temperature and pressure

Answer

By changing color and shape

Question 54

There are 3 parts (of a vehicle) that change velocity in a car/truck. Which of the following are they?

Accepted Answer

Steering, brakes, engine

Answer

Engine, wheels, transmission

Answer

Brakes, wheels, engine

Answer

Wheels, transmission, steering

Question 55

Acceleration is:

Accepted Answer

the rate of change of velocity

Answer

the distance covered per unit time

Answer

the force acting on an object

Answer

the mass of an object

Question 56

There is so much math in science because:

Accepted Answer

Math helps explain scientific concepts precisely.

Answer

Science is unrelated to math.

Answer

Math is only used in art, not science.

Answer

Science avoids using numbers.

Question 57

Acceleration is calculated as:

Accepted Answer

change in velocity divided by time

Answer

distance divided by time

Answer

velocity divided by time

Answer

force divided by mass

Question 58

Calculate the acceleration of a car (in km/h/s) that can go from rest to 100 km/h in 10 s. (acceleration = change in velocity/time interval)

Accepted Answer

5 km/h/s

Answer

10 km/h/s

Answer

20 km/h/s

Answer

100 km/h/s

Question 59

What is free fall? What force(s) act on an object in free fall?

Accepted Answer

Free fall is the motion of an object under the influence of gravity only; the only force acting is gravity.

Answer

Free fall is the motion of an object under the influence of air resistance; the only force acting is air resistance.

Answer

Free fall is the motion of an object under the influence of both gravity and friction; the forces acting are gravity and friction.

Answer

Free fall is the motion of an object under the influence of applied force; the only force acting is the applied force.

Question 60

After 1 second, how fast is a falling object traveling?

Accepted Answer

10 m/s

Answer

5 m/s

Answer

20 m/s

Answer

0 m/s

Question 61

After 2 seconds, how fast is a falling object traveling?

Accepted Answer

20 m/s

Answer

10 m/s

Answer

5 m/s

Answer

2 m/s

Question 62

For every second of free fall, an object falls a ________________________ than it did in the previous second.

Accepted Answer

greater distance

Answer

shorter distance

Answer

constant distance

Answer

slower speed

Question 63

Air resistance is noticeable in slowing a falling object:

Accepted Answer

when the object is very light or has a large surface area

Answer

only in a vacuum

Answer

when the object is very heavy

Answer

never

Question 64

What is the difference between a vector quantity and a scalar quantity?

Accepted Answer

A vector quantity has both magnitude and direction, while a scalar quantity has only magnitude.

Answer

A vector quantity has only magnitude, while a scalar quantity has both magnitude and direction.

Answer

Both vector and scalar quantities have only direction.

Answer

Both vector and scalar quantities have only magnitude.

Physics Final Review Spring 2025

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