SCIENCE AND MATH QUIZ GRADE 7

Approved & Edited by ProProfs Editorial Team

The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.

Learn about Our Editorial Process

| By Rmananya

Rmananya

Community Contributor

Quizzes Created: 1 | Total Attempts: 6,274

Questions: 7 | Attempts: 6,279 | Updated: Dec 2, 2024

Questions

Settings

Feedback

During the Quiz End of Quiz

Difficulty

Sequential Easy First Hard First

Play as

Quiz Flashcard

Create your own Quiz

Share on Facebook Share on Twitter Share on Whatsapp Share on Pinterest Share on Email Copy to Clipboard Embed on your website

Science and math are the most common subject that gives students hard time in different schools. Are you having some difficulties when it comes to math or science? Then the quiz below is exactly what you need to refresh your mind and learn some of the basic things you should know about the two in the seventh grade. Give it a try!

Questions and Answers

1.
- pHYSICS;
A BODY IS SAID TO BE IN MOTION IF:
- A.
  
  SPEED CHANGES
- B.
  
  DIRECTION
- C.
  
  POSITION CHANGES WITH RESPECT TO FIXED POINT
- D.
  
  NONE OF THESE
Correct Answer
C. POSITION CHANGES WITH RESPECT TO FIXED POINT

Explanation
A body is said to be in motion if its position changes with respect to a fixed point. This means that if the body moves from one location to another, it is considered to be in motion. The other options, such as speed changes and direction, may be characteristics of motion but they do not define motion itself. Therefore, the correct answer is that a body is in motion if its position changes with respect to a fixed point.

Rate this question:

16
0
2.

SOLVE THE FOLL. NUMERICAL: A BOY STANDS AT A DISTANCE OF 168m FROM A HIGH WALL. HE SINGS A SONG AND HEARS THE ECHO AFTER 1 SECOND. CALCULATE THE SPEED OF AIR.
- A.
  
  345 m\s
- B.
  
  380 m\s
- C.
  
  336 m\s
- D.
  
  400 m\s
Correct Answer
C. 336 m\s

Explanation
The speed of sound in air is approximately 336 m/s. This can be determined by dividing the distance traveled by the sound wave (168m) by the time it takes for the echo to reach the boy (1 second).

Rate this question:

9
0
3.

THE TIME PERIOD OF A WAVE IS 0.25 SECONDS. FIND ITS FREQUENCY
- A.
  
  0 Hz
- B.
  
  9 HZ
- C.
  
  4 Hz
- D.
  
  8 Hz
Correct Answer
C. 4 Hz

Explanation
The frequency of a wave is the number of complete cycles it completes in one second. To find the frequency, we can use the formula: frequency = 1 / time period. In this case, the time period is given as 0.25 seconds. Plugging this value into the formula, we get: frequency = 1 / 0.25 = 4 Hz. Therefore, the frequency of the wave is 4 Hz.

Rate this question:

10
1
4.

SOUND CAN TRAVEL IN VACCUM
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Sound cannot travel in a vacuum because it requires a medium, such as air, water, or solids, to propagate. In a vacuum, there are no particles to vibrate and transmit sound waves. Therefore, sound waves cannot travel through empty space where there is no medium.

Rate this question:

8
1
5.

MATH: -2+3
- A.
  
  1
- B.
  
  -2
- C.
  
  -5
- D.
  
  None of thse
Correct Answer
A. 1

Explanation
It is the right answer beacuse when one positve no. and a negative no. get added, teh both get subtracted and the sign of + or - will be put of the bigger no.

Rate this question:

5
0
6.

IF ONE OR MAY CHROMOSOMES AE MISSING IN A CHILD AT BIRTH, IT CAUSES____________

Correct Answer
psychological problems

Explanation
If one or more chromosomes are missing in a child at birth, it can cause psychological problems. This is because chromosomes contain genetic information that plays a crucial role in the development and functioning of the brain and nervous system. The absence of certain chromosomes can disrupt the normal development of the brain, leading to various psychological issues such as cognitive impairments, learning disabilities, behavioral problems, and mental disorders.

Rate this question:

2
4 0
7.

We have _____ bones in our body

Correct Answer
206

Explanation
The correct answer is 206. This is the number of bones in the human body. The skeletal system is made up of 206 bones, which provide support, protection, and movement for the body. These bones vary in size and shape and are connected by joints, allowing for flexibility and mobility.

Rate this question:

4
4 0

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

Current Version
Dec 02, 2024

Quiz Edited by
ProProfs Editorial Team
Sep 07, 2011

Quiz Created by
Rmananya

Science And Math Quiz Grade 7

pHYSICS; A BODY IS SAID TO BE IN MOTION IF:

SOLVE THE FOLL. NUMERICAL: A BOY STANDS AT A DISTANCE OF 168m FROM A HIGH WALL. HE SINGS A SONG AND HEARS THE ECHO AFTER 1 SECOND. CALCULATE THE SPEED OF AIR.

THE TIME PERIOD OF A WAVE IS 0.25 SECONDS. FIND ITS FREQUENCY

SOUND CAN TRAVEL IN VACCUM

MATH: -2+3

IF ONE OR MAY CHROMOSOMES AE MISSING IN A CHILD AT BIRTH, IT CAUSES____________

We have _____ bones in our body

pHYSICS;

A BODY IS SAID TO BE IN MOTION IF: