scienc quizz imas school zara

what is upthrust

• upthrust is a force that pushes things upwards

• upthrust is a force that pushes things downwards

• it is applied force

this is an example of upthrust can u tell me what is it representing?

• it is representing an force that pulls it down wards

• it is representing an force that pulls it upwards

• or is it an gravity force?

what happens if the objects weight is greater then the force upthrust acting on it?

• it sinks

• it floats

• it hovers in the water

have u ever tried to push a beach ball down the sea or swimming pool? what happends to it does the beach ball sinks or not?

• it dosent sink because theres a force in the water not letting the ball sink

• or it sinkcs cuz the beach ball was heavy

what factors can affect the amount of upthrust experienced by an object in water?

• the shape and size of the object

• the color of the object

if an object is submerged in water, what happens to the upthrust force as it goes deeper?

• it increases with depth

• it remains constant

• it decreases with depth

do u you think upthurst and thrust has any diffrence ?

• definatly no

• yes

U HAVE two identical bottles one filled with water one is empty , we put both bottles in a swimming pool witch one will float higher?

• the empty

• the filled one

• both

okay now u succeeded to push the ball inside of the water BUT it comes back WHY???

• BECAUSE OF GRAVITY

• BECAUSE OF FORCE OF THRUST

• BECAUSE OF FORCE OF UPTHRUST

• NORMAL FORCE

(TRICKY QUESTION AHEAD) when u put a sponge in sea or pool will it sink or stay on top

• it will definatly stay on top cuz force of upthrust right sponge is so light it cant beat the force

• it will stay on top untill it goes down from contionouse water beneath it filling the sponge to a level hat the water gets absorbs and the sponge sinks