A force that resists the motion of two surfaces that are touching is named?
inertia
gravity
friction
mass
2. Multiple Choice
20 seconds
1 pt
An attractive force that exists between all objects that have mass is called?
friction
gravity
inertia
mass
3. Multiple Choice
20 seconds
1 pt
A push or a pull on one object by another object is a _____.
unbalanced force
contact force
balanced force
noncontact force
4. Multiple Choice
20 seconds
1 pt
To move a heavy object across the floor, you must first overcome _____, which tends to hold it in place.
gravity
sliding friction
inertia
static friction
5. Multiple Choice
20 seconds
1 pt
After overcoming this type of friction, you must push against _____.
sliding friction
fluid friction
stratic friction
gravity
6. Multiple Choice
20 seconds
1 pt
It's a unit of force or weight.
joules
meters
kilograms
newtons
7. Multiple Choice
20 seconds
1 pt
The combination of all forces acting on an object is the _____.
unbalanced forces
net force
balanced forces
static friction
8. Multiple Choice
20 seconds
1 pt
Forces that combine produce a net force of zero are _____.
static friction
unbalanced forces
inertia
balanced forces
9. Multiple Choice
20 seconds
1 pt
Forces that combine produce a net force different from zero are _____.
unbalanced forces
sliding friction
balanced forces
fluid friction
10. Multiple Choice
20 seconds
1 pt
_____ can cause an object to change its speed and/or direction.
inertia
balanced forces
momentum
unbalanced forces
11. Multiple Choice
20 seconds
1 pt
The tendency of an object to resist a change in its motion is called _____.
weight
inertia
centripetal force
circular motion
12. Multiple Choice
20 seconds
1 pt
An object's velocity can be changed by modifying its _____, its _____, or both.
speed, direction
distance, mass
mass, acceleration
acceleration, speed
13. Multiple Choice
20 seconds
1 pt
One newton can also be expressed as 1 _____.
kgm/s
m/s²
kgm/s²
kgm²
14. Multiple Choice
20 seconds
1 pt
Because of _____, an object in circular motion has a tendency to move away in a straight line.
mass
centripetal force
gravity
inertia
15. Multiple Choice
20 seconds
1 pt
The force that acts perpendicular to the direction of motion towards the center of the curve, to keep an object moving in a circular motion is called?
centripetal force
inertia
acceleration
gravity
16. Multiple Choice
20 seconds
1 pt
Newton's third law of motion states that, when one object exerts a force on a second object, the second object exerts a(n) _____ force in the _____ direction.
stronger, negative
weaker, opposite
stronger, positive
equal, opposite
17. Multiple Choice
20 seconds
1 pt
The forces that two objects apply to each other are named _____.
action force
net force
force pair
reaction force
18. Multiple Choice
20 seconds
1 pt
A moving object's _____ is a measure of how difficult it is to stop it.
momentum
centripetal force
inertia
gravity
19. Multiple Choice
20 seconds
1 pt
In a(n) _____ collision, objects do not bounce away from each other.
reaction
inelastic
action
elastic
20. Multiple Choice
20 seconds
1 pt
In a(n) _____ collision, objects bounce away from each other.