Types of Forces and Definitions
Force Calculations
Conversion
GPE and KE
Electrical Energy
100

This type of force is when we have someone pushing or pulling directly on something. 

Applied

100

What is the equation that represents Newton's 2nd Law?

F=m x a

100

How many kilograms is 156,000 grams?

156 kg

100
A rollercoaster has 500 Joules of GPE at the top of the first hill, when it is not moving. How much KE will it have at the bottom when its height is ZERO?

500 Joules

100

What is the unit for resistance?

Ohms

200

This type of force is present when we have an object hanging by a rope or a cable from the ceiling. 

Tension

200

If the mass of an object is 5kg and it is accelerating at a rate of 2 m/s2, what is the force?

10 N

200

There are 24 hours in a day. How many hours are in 7 days?

168 hours

200

An object has a mass of 14 kg and is at a height of 2 meters. How much GPE does it have?

274.4 J

200

An object is plugged into an outlet with 120 V. There is a current passing through the object of .1 amps. What is the value of the resistance?

1,200 ohms

300

What is the unit we use to represent a Force?

Newton

300

A car's engine puts out a maximum force of 10,000 Newtons. If the mass of the car is 1,500 kg, how fast will the car accelerate?

6.67 m/s2

300
The distance between two places is 23,000 millimeters. How many meters is this?

23 meters

300

An object has a GPE of 278 J. This object is 4.5 meters off the ground. How much mass does this object have?

6.30 kg

300

A remote control for a TV uses 3 batteries to operate and each battery is 1.5 volts. How much current passes through the remote if the resistance is 2,000 ohms.

.00225 amps

400

What force is present on ALL objects on Earth? Keeping us from floating away and PULLing us down.

Gravity

400

The mass of an object is 50 kg. How much WEIGHT does this object have?

490 N

400

A football field is about 100 meters. How many centimeters is a football field?

10,000 cm

400
On a different planet, an object has a GPE of 765 J. The mass of the object is 50 kg and it is 3.5 meters off the ground. What is the value of "g" on this other, mystery planet.

4.37 m/s2

400

The average power (watts) of a microwave is 1,000. If the microwave is plugged into an outlet (120V) and running, how much current is it using?

8.33 amps

500

What is Newton's THIRD law?

For every force, there is an equal and opposite force.

500

A person is pulling on a box with a force of 100 Newtons and friction is slowing down the box with a force of 20 Newtons. If the box has a mass of 10kg, what is its acceleration?

8 m/s2

500

A car is driving at 32 km/hour. How fast is this in m/s?

8.89 m/s

500

A bullet travels with a velocity of 1,200 m/s and has a mass of 6.5 grams. How much KE does this bullet have?

9,360 J

500

A space heater uses 4000 watts and is running for 5 hours a day in the garage of a home. If the cost of electricity is $.16, how much does this cost for the day?

$3.20

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