A pressing force directed straight out of a surface
Introduction to Forces

Quiz
•
Physics
•
9th Grade
•
Medium
David Accardi
Used 31+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
normal
friction
tension
gravitational
Answer explanation
"Normal" is a mathy way of saying "perpendicular"
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An attractive force between two masses
normal
friction
tension
gravitational
Answer explanation
Gravity only becomes strong enough to notice when the mass is very big, like the Earth.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A force that either prevents sliding or slows something down that's already sliding
normal
friction
tension
gravitational
Answer explanation
"static" friction prevents sliding
"kinetic" friction slows down sliding
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A pulling force that is transferred through a solid object like a rope or a chain
normal
friction
tension
gravitational
Answer explanation
Tension force is always directed along the rope or chain
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the forces on an object are balanced,
it must be stationary
it must be going a constant velocity
it must be accelerating
Answer explanation
A constant velocity of zero is still a constant velocity!
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the forces on an object are unbalanced,
it must be stationary
it must be going a constant velocity
it must be accelerating
Answer explanation
A constant velocity of zero is still a constant velocity!
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A dog is sliding to the left at a constant velocity. What can you say about the balance of forces on it?
they are balanced
they are unbalanced
we can't say
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