Physics Unit 3

If you knew the Mini Cooper's mass, the formula that would help you determine the Ford Mustang's velocity would be ______________.

m1v1i+m2v2i=m1v1f+m2v2f

If the Ford Mustang were to veer off the road and hit a sign, it would do much damage because its mass of 1533.142 kg times its velocity of 110 mph means it has a high ______________.

Momentum

The Ford Mustang and the SUV involved in the accident both had a momentum prior to the collision. After the collision, the ______________ momentum is vector sum of the momentum of the two vehicles.

Net

To calculate the Ford Mustang's momentum, you would use the formula ______________.

p=mv

The amount of work done to move the tire 5 miles in 5 minutes is equal to the ______________ necessary to perform that task.

Power

*Tire with sticky note picture* B (line from edge of tire to center of tire) points to the object's ______________.

Radius

*Tire with sticky note picture* The speed at which the sticky note follows the circumference in rotation around the tire's axis is the sticky note's ______________ speed.

Rotational

The tire and the axle it is attached to tend to remain in rotation due to ______________. That is why you need brakes on a car- to stop the tires' rotating motion.

Rotational Inertia

*Tire with sticky note picture* C (Line from sticky note to ground) is the ______________ line the sticky note would follow if it became unattached during the tire's rotation.

Tangent

*Tire with sticky note picture* The speed with which the sticky note would have if it became unattached during the tire's rotation is the sticky note's ______________.

Tangential Speed

The Ford Mustang's velocity was compted by using the formula ______________ and including the direction the car was traveling in.

v=d/t

Since the Ford Mustang's velocity, acceleration, and momentum all involve direction, these quantities are ______________ quantities

Vector

The statement "A Ford Mustang is moving at 63 mph northwest" describes the Mustang's ______________.

Velocity

The amount of force needed to move the tire 5 miles is equal to the ______________ required to perform that task.

Work

The Ford's Mustang's acceleration might be expressed as ______________.

7 mph/s

Centripetal force pulls a mass out of its ______________.

Inertial Path

Now the Ford Mustang changes its velocity by speeding up to 70 mph in one second. It is still traveling towards the northwest. The mustang has began ______________.

Acceleration

If the momentum of the Ford Mustang changed, it would be due to ______________.

An Impulse

In a parking lot, the Ford Mustang bumps into a Mini Cooper traveling in the same direction. Their fenders lock together and for a short time, they travel together. Their collision is ______________.

Inelastic

The rate of the tire's speed suddenly increases. The sticky note's speed also increases. Another way of say this is that the sticky note's ______________ increases.

Centripetal Acceleration

*Tire with sticky note picture* D (Line from sticky note to the center of the tire) represents the ______________ that makes the sticky note try to move inward to the tire's axis.

Centripetal Force

*Tire with sticky note picture* A sticky note became attached to the tire. As the tire rotates, the sticky note travels in nonlinear, or ______________ motion.

Circular

*Tire with sticky note picture* A (the tire itself) points to the object's ______________.

Circumference

If the Ford Mustang accidentally went off the third floor of parking garage, it would accelerate towards the street due to the force of ______________.

Gravity

The centripetal force that keeps you on the face of the earth is ______________.

Gravity

Examine the rotational inertial formula carefully. Would solid or hollow tires have less rotational inertia?

Hollow

The formula for rotational inertia is ______________.

I= md2

On a street, the Ford Mustang traveling at 60 mph collides head-on with an SUV going 27 mph in the opposite direction. The two vehicles bounce off of each other and move away in opposite directions. Their collision is ______________

Elastic

To compute the force of gravity, you would use the formula ______________.

F= G(m1m2/d2)

To calculate the time it would take for a ball to fall from the third floor to the street, you would use the formula ______________

d=1/2(gt2)