Introduction to Physics Practice Questions
SPM (Malaysia) · SPM Physics · 145 free MCQs with instant results and detailed explanations.
145
Total
51
Easy
73
Medium
21
Hard
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Sample Questions from Introduction to Physics
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Q1
Easy
What is the primary branch of physics that deals with the study of matter and energy?
A.
Kinematics
B.
Thermodynamics
C.
Classical Mechanics
D.
Physics
Show Answer & Explanation
Correct Answer: D
Physics is the broad field that encompasses the study of matter, energy, and their interactions. Kinematics, Thermodynamics, and Classical Mechanics are specific areas within physics.
Q2
Easy
If an object is moving at a constant speed of 20 m/s, how far will it travel in 5 seconds?
A.
100 meters
B.
80 meters
C.
120 meters
D.
60 meters
Show Answer & Explanation
Correct Answer: A
Distance is calculated using the formula: Distance = Speed ร Time. Substituting the values, Distance = 20 m/s ร 5 s = 100 meters.
Q3
Easy
Which of the following best describes the role of a hypothesis in scientific investigation?
A.
A definite conclusion about an experiment
B.
A testable statement predicting the outcome of a study
C.
A collection of data and results
D.
An established scientific law
Show Answer & Explanation
Correct Answer: B
A hypothesis is a testable statement that predicts what will happen in an experiment. It serves as a starting point for testing and investigation.
Q4
Medium
What is the primary focus of physics as a science?
A.
To study the behavior of matter and energy.
B.
To explore historical events.
C.
To analyze human behavior.
D.
To document environmental changes.
Show Answer & Explanation
Correct Answer: A
Physics is fundamentally concerned with understanding the laws governing matter and energy in the universe, making option A the correct choice.
Q5
Medium
If an object is moving with a constant velocity, what can we infer about the net force acting on it?
A.
The net force is zero.
B.
The net force is equal to its mass.
C.
The net force acts in the direction of motion.
D.
The net force is increasing.
Show Answer & Explanation
Correct Answer: A
According to Newton's first law of motion, an object moving at constant velocity must have no net force acting on it, thus option A is correct.
Q6
Medium
A 5 kg object is lifted to a height of 2 meters. What is the potential energy gained by the object? (Use g = 9.8 m/sยฒ)
A.
98 J
B.
78 J
C.
50 J
D.
20 J
Show Answer & Explanation
Correct Answer: A
Potential energy (PE) is calculated using the formula PE = mgh. Thus, PE = 5 kg * 9.8 m/sยฒ * 2 m = 98 J, confirming that option A is correct.
Q7
Medium
Which of the following best describes the concept of inertia?
A.
The tendency of an object to resist changes in its state of motion.
B.
The gravitational force acting on an object.
C.
The speed of an object in motion.
D.
The energy possessed by an object.
Show Answer & Explanation
Correct Answer: A
Inertia is defined as the property of matter that causes it to resist changes in its motion, making option A the accurate description.
Q8
Hard
A car accelerates uniformly from rest to a speed of 25 m/s over a distance of 100 m. What is the acceleration of the car?
A.
3.125 m/sยฒ
B.
2.5 m/sยฒ
C.
4.0 m/sยฒ
D.
5.0 m/sยฒ
Show Answer & Explanation
Correct Answer: A
Using the equation vยฒ = uยฒ + 2as, where v = final velocity (25 m/s), u = initial velocity (0 m/s), a = acceleration, and s = distance (100 m), we rearrange to find a: a = (vยฒ - uยฒ) / (2s) = (25ยฒ - 0ยฒ) / (2 * 100) = 3.125 m/sยฒ.
Q9
Hard
In a vacuum, a pendulum swings with a period T. If the length of the pendulum is doubled, what will be the new period of the pendulum?
A.
T
B.
2T
C.
โ2 T
D.
2โ2 T
Show Answer & Explanation
Correct Answer: D
The period of a pendulum is given by the formula T = 2ฯโ(L/g). If L is doubled, the new period T' becomes T' = 2ฯโ(2L/g) = 2ฯโ2โ(L/g) = 2โ2 T, hence the period increases.
Q10
Hard
A car accelerates uniformly from rest to a velocity of 25 m/s over a distance of 200 meters. What is the car's acceleration?
A.
1.56 m/sยฒ
B.
3.12 m/sยฒ
C.
0.78 m/sยฒ
D.
2.5 m/sยฒ
Show Answer & Explanation
Correct Answer: A
Using the formula vยฒ = uยฒ + 2as, where v = final velocity, u = initial velocity, a = acceleration, and s = distance. Here, u = 0, v = 25 m/s, s = 200 m. Rearranging gives a = (vยฒ - uยฒ) / (2s) = (25ยฒ - 0ยฒ) / (2 * 200) = 1.56 m/sยฒ.
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Introduction to Physics โ SPM (Malaysia) SPM Physics Practice Questions Online
This page contains 145 practice MCQs for the chapter Introduction to Physics in SPM (Malaysia) SPM Physics. The questions are organized by difficulty โ 51 easy, 73 medium, 21 hard โ so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit.