PHYS165 / PHYS 165 Module 5: (Latest
Update ) Physics | Questions
& Answers | Grade A | 100% Correct -
Portage Learning
Momentum
the product of the system's mass x velocity
Is momentum a vector or scalar?
Vector
It has the same direction as the velocity of the object.
What happens with momentum during collisions?
Momentum is conserved. The total momentum before the collision equals the total
momentum after?
Units and symbol for momentum
kg(m) / s ;
p
Equation for Momentum
p=mv
Momentum is a numerical measurement for ....
inertia
(not the same thing, but related)
What is the direction of momentum?
, Same direction as velocity
Why is momentum dangerous in fast/heavy objects?
Higher momentum = harder to stop
Short definition of impulse
Changes the momentum of an object
Long definition of impulse
The product of the force and the time interval during which the force is applied.
Units and symbol for impulse
Newton-seocnds (Ns) ;
J
Is impulse a vector or scalar?
Vector
In the same direction as the force
Equation for Impulse with constant force
J = Fdeltat
Two ways to increase impulse
Increase force or increase time interval
Longer contact time = ...... momentum change
greater momentum change
What does impulse equal on a force-time graph?
The area under the curve
Equation for impulse from a triangular force-time graph
Update ) Physics | Questions
& Answers | Grade A | 100% Correct -
Portage Learning
Momentum
the product of the system's mass x velocity
Is momentum a vector or scalar?
Vector
It has the same direction as the velocity of the object.
What happens with momentum during collisions?
Momentum is conserved. The total momentum before the collision equals the total
momentum after?
Units and symbol for momentum
kg(m) / s ;
p
Equation for Momentum
p=mv
Momentum is a numerical measurement for ....
inertia
(not the same thing, but related)
What is the direction of momentum?
, Same direction as velocity
Why is momentum dangerous in fast/heavy objects?
Higher momentum = harder to stop
Short definition of impulse
Changes the momentum of an object
Long definition of impulse
The product of the force and the time interval during which the force is applied.
Units and symbol for impulse
Newton-seocnds (Ns) ;
J
Is impulse a vector or scalar?
Vector
In the same direction as the force
Equation for Impulse with constant force
J = Fdeltat
Two ways to increase impulse
Increase force or increase time interval
Longer contact time = ...... momentum change
greater momentum change
What does impulse equal on a force-time graph?
The area under the curve
Equation for impulse from a triangular force-time graph
