Forces and magnet

Which of these forces does not act on an object moving through water?

• Upthrust

• Normal force

• Gravity

• Water resistance

We use ______ to measure weight.

                      

                   

• forcemeter 

• scale 

• ruler    

• thermometer

Which of these metals is magnetic ?

                                              

                    

• Iron

• Copper

• Aluminium 

• Lead

Tags

NGSS.MS-PS2-3

________ causes an object to float in water

• Gravity

• Air resistance

• Upthrust

• Normal force

The force which opposes motion is called ______.

• push

• pull  

• force

• friction 

The applied force that make aeroplane to float in air is called ____.

• gravity

• friction

• uplift

• applied

Friction works in the direction _____ to the direction an object is moving.

• adjacent     

•       opposite     

•      

  parallel       

• same

Frictional force is great between ___surfaces.

            

• rough

• hard              

• smooth       

• soft

Which force slows down a falling object from fall?

• Upthrust                        

• Air resistance                               

• Normal force                

• Water resistance

___ is a mixture of metal with one or two other elements.

• Magnet         

• Alloy

•       Electricity

• Aluminium