S2_Ch11.4_friction

S2_Ch11.4_friction

Professional Development

8 Qs

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S2_Ch11.4_friction

S2_Ch11.4_friction

Assessment

Quiz

Science

Professional Development

Practice Problem

Easy

Created by

Mio Lai

Used 3+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Friction is a_________________ force.

contact

non-contact

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The direction of friction is _____________the sliding direction.

same as

opposite to

3.

DRAW QUESTION

1 min • 1 pt

Amy is trying to push the sofa to the left. Draw an arrow to show the friction acting on the sofa.

Media Image

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the methods used to reduce friction for the following cases?

e.g. Adding lubricating oil to the window frame.

using rolling objects

using air cushion

using lubricants

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the methods used to reduce friction for the following cases?

e.g. Pulling the luggage

using rolling objects

using air cushion

using lubricants

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the methods used to reduce friction for the following cases?

e.g. Speed up the jetfoil (噴射水翼船)

using rolling objects

using air cushion

using lubricants

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the methods used to reduce friction for the following cases?

e.g. Using soapy water to take off the ring

using rolling objects

using air cushion

using lubricants

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What are the methods used to reduce friction for the following cases?

e.g. Pushing the trolley.

using rolling objects

using air cushion

using lubricants