WorksheetsFloating and Sinking Keywords Quiz - G8
Total questions: 10
Worksheet time: 5mins
What is buoyancy?
The ability of an object to float in a fluid
The process of measuring the mass of an object
The force pulling objects toward Earth
The downward force acting on an object
What does density refer to?
The volume of a fluid
The amount of space an object occupies
The mass of an object divided by its volume
The amount of pressure exerted by a liquid
Which of the following defines upthrust?
The force that pushes objects toward Earth
The upward force exerted by a fluid on a submerged object
The pressure applied to a surface
The change in an object’s velocity over time
What is a hypothesis?
A set of conclusions drawn from experiments
An explanation based on observations that is not testable
A proposed explanation for a phenomenon that can be tested
A mathematical formula for gravity
What are balanced forces?
Forces that cause an object to accelerate
Forces that are equal in size but opposite in direction
Forces that cause objects to sink
Forces acting on objects in motion
When do unbalanced forces occur?
When forces acting on an object are equal
When the object's motion does not change
When one force is greater than the other
When an object is in free fall
What does submerged mean?
Floating on the surface of a fluid
Completely under the surface of a fluid
Halfway submerged in a fluid
Suspended in the air
In an experiment, what is a variable?
The outcome that is measured
A factor that can change
A set of instructions for an experiment
A fixed value that does not change
Which of the following best describes pressure?
The upward force exerted by a fluid
The force applied perpendicular to a surface per unit area
The density of a fluid
The force of gravity on an object
What are weather balloons used for?
To measure the density of water
To gather data about atmospheric conditions
To measure the mass of objects in space
To test the effects of balanced forces
