WorksheetsCh 5 Conceptual Physics
Total questions: 17
Worksheet time: 9mins
The vertical component of a projectile's velocity
is constant
is like the motion for a freely falling object.
can be in only one direction
The horizontal component of motion for a projectile
depends on the acceleration of gravity
depends on the vertical component of motion
is just like the motion of a ball rolling on a horizontal surface without friction.
The perpendicular components of a vector
are independent of each other.
are sometimes at right angles to each other
have greater magnitude than the given vector they represent
The resultant of two perpendicular vectors is
the side of a rectangle constructed with the two vectors as sides.
the area of a rectangle constructed with the two vectors as sides.
the diagonal of a rectangle constructed with the two vectors as sides.
A vector quantity includes ______, but a scalar quantity includes only magnitude.
time and direction
both magnitude and direction
both magnitude and time
Velocity differs from speed in that velocity includes ______ in its description.
acceleration
direction
time
gravity
A small airplane flying north at 80 km/h encounters a tailwind blowing north 60 km/h. Its resulting velocity is
20 km/h
100 km/h
140 km/h
A small airplane flying north at 80 km/h encounters a crosswind blowing east 60 km/h. Its resulting velocity is
20 km/h
100 km/h
140 km/h
A boy drops a rock off a cliff at the same time that his sister throws another rock horizontally from the cliff. Which statement(s) about the two rocks that are true?
Gravity acts on both rocks.
Both rocks hit the ground at the same time.
Both rocks accelerate horizontally and vertically.
Both rocks follow parabolic paths.
Which best describes the relationship between the vertical and horizontal velocity components for a projectile?
equal
opposite
independent
constant
A ball is dropped off the edge of a desk. Another ball rolls off the desk at exactly the same time. Which best describes the vertical velocity component of the balls?
equal
opposite
zero
constant
Horizontal and vertical components of a vector are independent of each other
True
False
The path of a projectile is also called its ________
resultant
trajectory
horizontal range
component
The horizontal distance that a projectile travels is also called its ________
resultant
trajectory
horizontal range
component
The diagonal of a rectangle defined by horizontal and vertical components is the ________
resultant
trajectory
horizontal range
component
The vertical distance a projectile falls below an
imaginary straight-line path
is perpendicular to the imaginary path
is equal to 5 t2 meters
depends on the angle
depends on the speed
The downward motion of a horizontally launched projectile
is constant
depends on the object's weight
is the same as that of free fall
