Forces Chapter Review

Last updated about 6 years ago
30 questions
1

When you pull on a window shade, you exert a(n) _____.

1

A(n) _____ can be used to represent the direction and strength of a force.

1

The strength of a force is measured in _____.

1

The net force determines how and if an object will _____.

1

When two forces act in opposite directions, the object will accelerate in the same direction as the _____ force.

1

A force is described by its _____ and by the direction in which it acts.

1

The law of universal _____ states that the force of gravity acts between all objects in the universe that have mass.

1

As distance increases, gravitational force _____.

1

When you stand on a bathroom scale, it displays the ____ force that Earth is exerting on you.

1

Friction acts in a direction _____ to the direction of the object's motion.

1

When the irregularities of one surface come into contact with those of another surface, _____ occurs.

1

The applied force required to push something across a surface ____ as friction increases.

1

Newton's first law of motion states that an object will not experience a change in motion unless acted upon by a(n) balanced force.

1

To increase acceleration of an object, you reduce its mass or increase the applied force.

1

Newton's third law of motion states that if one object exerts a force on another object, then the second object exerts a force of equal strength in the same direction

1

Resistance to change in motion is called statis.

1

Action and reaction forces acting in opposite directions do cancel out because they act on different objects.

1

If you lean against a wall, the wall pushes back on you with a(n) weaker force.

1

Which of the following, moving at the same speed, would be hardest to stop?

1

Which moving object, in all likelihood, will have the greatest momentum?

1

Which formula is used to calculate momentum?

1

In which situation does the law of conservation of momentum apply?

1

The state that exists when the only force acting on an object is gravity is called...

1

The acceleration due to gravity near the surface of Earth is equal to...

1

Satellites in orbit around Earth travel in an almost circular path because Earth is...

1

The word centripetal means...

1

Force = 65 kg X 3 m/s2 =

1

A 250 kg trailer is being pulled by a truck. The force causes the trailer to accelerate at 4 m/s2. What is the net force that causes this acceleration?

1

Momentum = 5 kg X 6.5 m/s = (no unit necessary)

1

A 0.14 kg baseball travels at 7 m/s. What is it's momentum? (no unit necessary)