OpenSciEd 8.1

Which of the following statement is true about force?

• A student laughing loudly

• Pushing or pulling of an object

• Students singing the school song

• Balancing an object on the hand

Tags

NGSS.MS-PS2-2

A durian falls from the tree. There is a ___________.

• gravitational force

• normal force

• elastic force

• buoyant force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Diagram shows a yacht floating on the surface of the sea. P and Q are the forces acting on the yacht. What are P and Q?

• P: Weight; Q: Normal force

• P: Buoyant force ; Q: Weight

• P: Normal force ; Q: Frictional force

• P: Frictional force ; Q: Normal force

Which of the following is the S.I. unit for force?

• Newton

• Kilogram

• Watt

• Joule

List the steps of the scientific method

d

e

f

c

b

a

Communicate results

Draw conclusions

Form a hypothesis

Analyze results

Ask a question

Conduct experiment

Tags

NGSS.HS-PS1-3

NGSS.HS-PS3-4

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Which of the following examples is not a force?

• Gravitational force

• Elastic force

• Frictional force

• Mass force

On earth, the object with a mass of 1 kg has a weight of ___.

• 1N

• 10N

• 100N

Tags

NGSS.MS-PS2-4

______________ is the thrust force acting on an object that is floating on the surface of a fluid.

• Frictional force

• Buoyant force

• Weight

• Normal force

State the type of force that resists movement between two surfaces that are in contact with each other.

• Frictional force

• Buoyant force

• Gravitational force

• Elastic force

Tags

NGSS.MS-PS2-2