# Physics Do Now 11/7

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1.
1 point
_____ resistance is the friction acting on something moving through air.
2.
1 point
The force due to air resistance diminishes the net force acting on the _____ objects.
3.
1 point
All freely falling objects fall with the _____ acceleration because the net force on an object is only its weight, and the ratio of weight to mass is the same for all objects.
4.
1 point
One newton per square meter is equal to one _____.
5.
1 point
A moving object can have a large _____ if it has a large mass, a high speed, or both.
6.
1 point
The air resistance force an object experiences depends on the object’s _____ and area.
7.
1 point
The _____ of the force of friction always opposes the direction of motion.
8.
1 point
A fast car can have _____ momentum than a slow truck.
9.
1 point
Unbalanced forces acting on an object cause the object to _____.
10.
1 point
The friction produced by a tire rubbing against the concrete is _____ effective in slowing the car than the friction produced by a steel car body sliding against a steel rail.
11.
1 point
For a constant force, an _____ in the mass will result in a decrease in the acceleration.
12.
1 point
Newton’s _____ law describes the relationship among an object's mass, an object's acceleration, and the net force on an object.
13.
1 point
Acceleration depends on the _____ force.
14.
1 point
You experience the force due to _____ resistance when you stick your hand out of the window of a moving car.
15.
1 point
The acceleration is _____ proportional to the mass.
16.
1 point
You exert _____ pressure against the ground when you stand on one foot than when you stand on both feet due to the decreased area of contact.
17.
1 point
The force of _____ between the surfaces depends on the kinds of material in contact and how much the surfaces are pressed together.
18.
1 point
Momentum is the _____ of an object multiplied by its velocity.
19.
1 point
The amount of force per unit of area is called _____.
20.
1 point
For a constant force, an increase in the area of contact will result in a _____ in the pressure.