Force And Motion 2 Question Preview (ID: 34227)


Test Review Part 2. TEACHERS: click here for quick copy question ID numbers.

Friction occurs because of
a) the roughness of an object's surface
b) only the weights of any two objects
c) only the masses of any two objects
d) unbalanced forces

A hiker's velocity changes from 1.8 m/s uphill to 1.5 m/s uphill. How do you know they have a negative acceleration?
a) his direction changed
b) his direction did not change
c) his speed increased
d) his speed decreased

In which of the following is a skater NOT accelerating?
a) going straight and speeding up
b) going straight at a constant speed
c) going in circles
d) going straight and slowing down

A student has a weight of 420N on Earth. What is his weight on the moon? (Moon's gravity is 1/6 of Earth's)
a) 70N
b) 2520N
c) 70kg
d) 2520kg

An unbalanced force can cause an object's motion to change by...
a) changing direction or speed; starting but not stopping motion
b) changing direction or speed; starting or stopping motion
c) changing direction or speed; stopping but not starting motion
d) changing direction or speed only

The law of universal gravitation says that gravitational force is...
a) related to mass and distance
b) related to weight and distance
c) related to mass and friction
d) related to weight and friction

To produce change in motion, a force must be an
a) balanced force
b) unbalanced force
c) frictional force
d) gravitational force

The gravitational pull is greater between 2 objects that
a) have greater masses
b) have rougher surfaces
c) are farther apart
d) are moving at greater speed

What is an object that appears to stay in place that helps you detect motion in another object?
a) newton
b) reference point
c) the sky
d) a shoe

dividing the total distance traveled by the total time is how to calculate...
a) speed
b) velocity
c) motion
d) acceleration

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