WorksheetsEngineering Quiz
Total questions: 14
Worksheet time: 2hrs 20mins
What does it mean when the vector sum of all forces is zero?
There is no net force acting on the object
There is a positive net force acting on the object
There is a negative net force acting on the object
The object is experiencing an unbalanced force
What does the resultant force vector involve?
The sum of forces in the x plane
Only the directions of the force vectors
Combining all forces acting on an object
Breaking down horizontal and vertical components of a vector
What kind of force vectors can be broken down into x and y components (horizontal and vertical components)
All forces
Angled forces
Flat forces
Forces that are straight up and down only
Galileo and Newton describe forces as:
Any invisible thing
A push or a pull
A power for the Jedi
A power manipulated by the Sith
A force that causes an object to accelerate must be:
At least 10 N
A balanced force
A total of 0 net force
An unbalanced force
Choose one of the following choices that happens after a balanced force hits an object
No change in motion
It speeds up
It slows down
It changes direction
For an object to be considered to be in equilibrium, what must be true?
There must be a net force acting on the object in the x or y plane
The force of gravity must be stronger than the normal force acting on the object
The net force in the x and y plane must equal zero
The force of friction must be lower than the applied force
What are the two types of forces described in this chapter
Field and Contact forces
Field and Invisible forces
Hand force and the force
Magnetism and Gravity forces
After a football is thrown, what forces are acting on it?
The initial contact force and gravity
Gravity and air resistance
Initial velocity and normal force
Gravity and normal force
If a soccer ball was moving to the right towards the goal with a force of 27 N, what would cause the ball to be in equilibrium?
An equal force in the opposite direction
An unbalanced force of gravity
The normal force that opposes gravity
The ball is in equilibrium because only gravity is acting on it
Choose the correct example of Newton's First Law of motion
A truck will have more force than a bike because a truck has more mass
A ball sitting on a desk will not more until an unbalanced force acts on it
Inside of a vacuum, gravity is the only force acting on an object
When you push backwards on the ground while skateboarding, you move forward
What is the effect of an unbalanced force on an object's motion?
It causes the object to stop
It causes the object to accelerate
It has no effect on the object's motion
It causes the object to decelerate
What is the net force on an object in equilibrium?
Equal to the weight of the object
Zero
Equal to the mass of the object
Depends on the speed of the object
What is the role of friction in the motion of a rolling ball?
It speeds up the ball
It slows down the ball
It has no effect on the ball
It changes the direction of the ball
