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## PowerPoint Slideshow about ' Forces and Motion' - deacon-wong

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### Forces and Motion

SOL Review

John goes over the top of a hill at a speed of 4m/s while on his bicycle. Four seconds later, his speed is 24m/s. What is John's acceleration?

- 20 m/s sq.
- 16 m/s sq.
- 6 m/s sq.
- 5 m/s sq.

Forces that are equal in size and opposite in direction are: his bicycle. Four seconds later, his speed is 24m/s. What is John's acceleration?

- balanced forces
- frictional forces
- gravitational forces
- net forces

Newton's first law of motion states that an object stays at rest unless a ____ acts on it.

- balanced force
- frictional force
- gravitational force
- net force

The rate of change of speed and/or the change in direction is called:

- acceleration
- average speed
- gravity
- velocity

The relationship among mass, force, and acceleration is explained by:

- conservation of momentum
- Newton's first law of motion
- Newton's second law of motion
- Newton's third law of motion

Which of the following objects has the greatest inertia? explained by:

- baseball
- bowling ball
- pencil
- table-tennis ball

As you climb a mountain, you get farther from the center of the earth. Your weight will:

- decrease
- increase
- remain the same

A person, in a head-on car collision, who is not wearing a seat belt, continues to move forward at the original speed of the car because of:

- friction
- inertia
- gravity
- weight

The statement "for every action there is an equal and opposite reaction" is:

- the law of conservation of momentum
- Newton's first law of motion
- Newton's second law of motion
- Newton's third law of motion

The acceleration due to gravity is: opposite reaction" is:

- 98 m/s sq.
- 9.8 m/s sq.
- 9.8 m/s
- 0.98 m/s

A 300N force is used to move an object 2M. The amount of work equals:

- 150 Nm
- 300 Nm
- 302 Nm
- 600 Nm

Two simple machines that are part of a bicycle are: work equals:

- A wheel an axle and a screw
- An inclined plane and a lever
- An inclined plane and a wedge
- A screw and an inclined plane

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