Block 17- Weekly Home Assignment- Frictional Force

Friction is more on which surface?

• Smooth surface

• Rough surface

• Both surfaces

What do Ishika, Saisha, and Divya use to reduce friction?

• Friction

• Force

• Lubricants

What do you think, Arjun, Asher, and Ananya, about the effect of friction on the motion of a car on a road?

• Friction stops the motion

• Friction lessens the motion

• Friction slows down the motion

• Friction opposes the motion

Frictional force is a ____ force

• Contact

• Non-contact

• Moving

Why do objects stay in their places?

• Because of gravity

• Due to frictional force

Tags

NGSS.MS-PS2-4

Due to frictional force heat is produced which makes our hands ____

• Rough

• Smooth

• Warm

• Cold

What should be done to the surface to reduce friction?

• Make it rough

• Keep it smooth

• Darken it

• Make it heavier

What are two factors that determine the amount of friction between two objects?

• mass of the box and roughness between surfaces

• hills and valleys and how smooth or rough the surface is

• Amount of force and amount of surface that the object comes in contact

• The force and the weight exerted on the surfaces

What is the unit called that measures force?

• weight

• meter

• newton

• kilogram

Friction is a force that acts in an ___________ direction of movement, according to Avyaan, Kavya, and Aanya.

• similar

• opposite

• parallel

• west