Prep 1 revision

Prep 1 revision

7th Grade

15 Qs

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Prep 1 revision

Prep 1 revision

Assessment

Quiz

Science

7th Grade

Practice Problem

Hard

Created by

Ibrahiem Thabet Elnaggar Thabet

Used 6+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Media Image

find the mass number of the opposite diagram?

38

40

18

20

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

An element whose electrons are distributed in three energy levels, and the outermost energy level carries 3 electrons and its atom contains 14 neutrons, does this element share in chemical reactions?

Yes

No

3.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

one gram of ................... contains one type of atoms.

iron

ammonia

water

hydrogen chloride

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

when the object is thrown upwards its ..............

speed increases gradually

speed decreases gradually

kinetic energy increases gradually

potential energy decreases gradually

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

the mechanical energy of a pendulum at the maximum displacement equals ...............

its kinetic energy

kinetic energy + potential energy

its potential energy

zero

6.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

the simple electric cell contains ..............

dil. HCl

HNO3HNO_3

dil. H2SO4H_{2_{ }}SO_4

NaCl

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

the heat of the heater is transferred by ...............

conduction and radiation

radiation and convection

conduction and convection

radiation only

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