Practice calculating using F=ma 1. What net force is required to accelerate a car at a rate of 2 m/s2
3,000 kg?
F=
M=
A=

2. A10 kg bowling ball would require what force to accelerate down an alleyway at a rate of 3
m/s2
?
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M=
A=

3. Sally has a car that accelerates at 5 m/s2
force does the car produce?
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M=
A=

4. What is the mass of a falling rock at 9.8 m/s2
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5. What is the mass of a truck if it produces a force of 14,000 N while accelerating at a rate
of 5 m/s2
?
F=
M=
A=

6. What is the acceleration of softball if it has a mass of 0.5 kg and hits the catcher's glove
with a force of 25 N?
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A=

7. Your own car has a mass of 2000 kg. If your car produces a force of 5000 N, how fast will it
accelerate?
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if it produces a force of 147 N?
. If the car has a mass of 1000 kg, how much
if the car has a mass of

8. Even though she is way ahead of you, Sally switches her car to run on nitrous oxide fuel.
The nitrous oxide allows her car to develop 10,000 N of force. What is Sally's acceleration
if her car has a mass of 500 kg?
F=
M=
A=

Follow these directions and answer the questions. 1. shine a pencil-thin beam of light on a mirror perpendicular to its surface. (if you don't have a laser light as suggested in the video, you can make a narrow beam from a flashlight by making a cone from black construction paper and taping it over the face of the flashlight.) how does the light reflect? how does the relationship of incident to reflected ray relate to the reflection of water waves moving perpendicular to a barrier? 2. shine a pencil-thin beam of light on a mirror standing on a sheet of paper on the table (or floor) so that you can mark the incident ray and reflected ray. (you can support the mirror from the back by taping it to a wooden block.) 3. mark a line on the paper representing the reflective surface. (the reflective surface of a mirror is usually the back edge.) 4. draw a dashed line perpendicular to the mirror surface at a point where the incident and reflected ray meet. this perpendicular is called a normal to the surface. 5. measure the angles between the rays and the normal. the angle of incidence is the angle formed by the incident ray and the normal to the surface. the angle formed by the reflected ray and normal is called the angle of reflection (r). what is the angle of incidence? what is the angle of reflection? 6. repeat for several different angles. (see report sheet for details.) what appears to be the relationship between the angle of incidence and angle of reflection? in science 1204, what was the relationship for these two angles made by the reflection of waves in a ripple tank? 7. roll a ball bearing so that it hits a fixed, hard surface (a metal plate) at several angles (including head-on). observe the way in which the ball bearing reflects. what generalization can you make about how a ball bearing reflects from a wall? have you proved that light can only behave like a wave?

The graph represents the distance a car travels over time while on the highway. which statement about the car's trip is accurate? a) the car does not move over time. b) the car travels at a constant velocity. c) the car's velocity increases constantly over time. d) the car's velocity decreases constantly over time.

The mass of a bowling ball is 10 kg and the mass of a ping pong ball is 0.015 kg. if the two objects are 5 meters apart, what is the gravitational force ?