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27 It is harder to push a box up a ramp with a rough surface than up ono
with a smooth surface because the rough surface provides moro
A motion
B friction
C gravity
D magnetism
EN
28 A boy can see his face when he looks into a mirror. Which physical
property of the mirror makes this happen?
A reflectiveness
B temperature
C flexibility
D volume
AV
29 The diagram below shows a T-shirt hanging on a clothesline. Letter A
represents a simple machine.
Clothesline
Pole
T-shirt
Which type of simple machine is represented by letter A?
A lever
B balance
C pulley
D inclined plane
Grade 4 Science -- June 19
[12]

Respuesta :

Friction and reflectiveness are the correct answers for question no. 26 and 27.

What is the role of friction?

It is harder to push a box up a ramp with a rough surface as compared to a smooth surface because the rough surface provides more friction that is the force opposite to the motion.

A boy can see his face when he looks into a mirror due to the reflectiveness property of the mirror that makes this happen because a boy see his reflection in that mirror.

So we can conclude that friction and reflectiveness are the correct answers for question no. 26 and 27.

Learn more about friction here: https://brainly.com/question/24338873

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