WorksheetsPractice quiz PHYSICS Yr 10
Total questions: 10
Worksheet time: 3mins
If a charge flows through a resistor, which of the following happens to the resistor?
It gets colder
It gets hotter
It becomes positively charged
Nothing
In a filament lamp, in what form is most of the energy lost?
Heat
Sound
Kinetic energy
Radio waves
What is centre of mass?
It is the point at which the mass of an object may be thought to be concentrated
The point at which an object has no mass
A number of points across an object which measure the same mass
None of the above
How can you locate the centre of mass of an irregular object?
Suspend the object from two locations and drop a plumb line from the suspension points
Suspend the object from one location and drop a plumb line from the suspension point
Measure to the centre of the object
None of the above
A freely suspended object will come to rest with its centre of mass directly below which point?
Point of recession
Point of suspension
The centre of mass doesn't lie directly below any point
None of the above
Which statement is true for an object which is travelling through a fluid?
The slower an object moves, the greater the frictional force that acts upon it
The frictional force on an object moving through a fluid remains constant regardless of the speed at which the object moves through the fluid
The faster an object moves, the greater the frictional force that acts upon it
After an object reaches a certain speed, whilst travelling through a liquid, the frictional force acting upon it becomes zero
What could a horizontal line on a velocity-time graph indicate?
An object has reached terminal velocity
An object is accelerating
An object is decelerating
An object has changed direction
What is the formula for the size of a moment?
M = F x d
F = M x d
M = F⁄d
d = M x F
What does an atom's atomic number represent?
The number of particles within an atom in its nucleus
The number of protons in an atom in its nucleus
The number of neutrons in an atom in its nucleus
The number of electrons in an atom in its nucleus
Which of the following absorbs the most X-rays?
Metal
Bone
Cloth
Both metal and bone
