True or False. A bike on grass is a form of friction?
What is true?
What are forces acting at a distance called?
Non-contact forces
This happens when something changes position.
Motion
True or False: An unbalanced force doesn't affect motion.
What is False
True or False: A force is balanced when the speed or force changes.
Which is not a CONTACT force? A. applied B. friction C. magnetism D. friction
magnetism
The measure of how fast something moves is its....
speed
What is the definition for net force? Give similar answer.
The sum of all forces acting on an object
True or False: Luis rubbed a balloon on his hair and held the balloon next to the wall. He observed the balloon stick to the wall. This is electric force?
True
Motion is created by which type of force?
Unbalanced force
A special type of frictional force that acts upon objects as they travel through the air.
Air Resistance
True or False: People playing tug of war is an example of tension force.
True
The _____________ of an object is the straight path an object can move along.
A. motion B. direction C. speed D. velocity
Direction
The force exerted by a compressed or stretched spring upon any object that is attached to it.
Gordon is making a list of forces for his science class. Which of the following should Gordon not list as a force? A. mass B. gravity C. friction D.a push or pull
A. mass
How do you know something has moved?
It has changed postition