WorksheetsForces and Fields Revision
Total questions: 33
Worksheet time: 31mins
What is a force?
Normal force is the force that pulls you down towards the ground
True
False
The slowly churning liquid iron core of the Earth helps to explain why the Earth...
Has an electrical field
Has gravity
Has a magnetic field
Rotates on its axis
A balanced force is when
(a)
Imagine you have a bar magnet. Where would you find the strength of the magnetic field to be the strongest?
In the middle of the magnet
At the poles of the magnet
Which of these objects would a magnet attract?
If forces on an abject are balanced what could happen to the motion of the object?
speed up
slow down
not move
continue moving at a constant velocity
The object will
Not Accelerate
Accelerate
If an object is not moving the forces acting upon it are _____________
unbalanced
weak
balanced
Hulk Smash!
An unbalanced force is
Two forces equal in size acting on an object
Two forces unequal in size acting on different objects
Two forces unequal in size acting on an object
Two forces equal in size acting on different objects
When there is friction, the energy of an object's motion is converted into _______ energy
heat
electric
solar
geothermal
This car is turning, but there’s a puddle of water in the road. Which diagram best shows how the puddle will affect the path of the car after it hits the puddle?
What type of friction occurs when an object is not moving?
static
sliding
fluid
rolling
Which of the following are lubricants?
oil and butter
sand and sawdust
Imagine you are an astronaut and you've just landed on Jupiter. You notice that you weigh more than you did on Earth. This is because...
Jupiter has more mass, and therefore more gravity
Jupiter has less mass, and therefore more gravity
Jupiter has more mass, and therefore less gravity
Jupiter has less mass and therefore less gravity
Draw the all the forces acting on this object
Select all that describe insulators.
allow charges to flow easily
do not allow charges to flow easily
plastic
metal
surround a wire
_______ is when there is a buildup of charges (more of one type of charge) on an object.
static electric discharge
static electricity
current electricity
All of the following are examples of static electric discharge EXCEPT:
lightning
getting shocked by a doorknob
the crackle sound as you pull clothes from the dryer apart
when your hair stands on end as you jump on the trampoline
Imagine you're at a birthday party and you see a kid rubbing a balloon against their hair. How does this action create static electricity?
By using conduction, the kid adds protons to the balloon
The kid is stealing electricity from the air between their hair and the balloon
The action creates friction which transfers electrons from the kid's hair to the balloon
It creates induction between the kid's hair and the balloon
