What is A place or object used for comparison to determine if an object is in motion is called
a) reference point
b) constant speed
c) velocity
d) distance
a) reference point
100
A place or object used for comparison to determine if an object is in motion is called?
a) reference point
b) constant speed
c) velocity
d) distance
reference point
100
What is An object that is in free fall seems to be
a) not moving
b) slowed by air resistance
c) speeded up by air resistance
d) weightless
a) not moving
100
What is Inertia varies depending on
a) velocity
b) motion
c) mass
d) force
c) mass
200
100Ns
What impulse would be provided by a force of 50N acting for 2 sec?
200
What is A ____________ is a push or pull that causes an object to change its motion.
a) force
b) change
c) kinetic
d) compound
a) force
200
What is When you kick a soccer ball it has __________ energy.
a) kinetic
b) potential
c) mechanical
d) chemical
a) kinetic
200
What is The unit of momentum is
a) kg x m
b) kg x m/s
c) kg x m/s 2
d) m/s 2
b) kg x m/s
200
What is The SI unit that is used to measure time is the
a) second
b) meter
c) kelvin
d) kilogram
a) second
300
What is What does constant speed look like on a graph?
a) a horizontal line
b) the slope of the line would increase. It would be a straight line.
c) The slope of the line would decrease.
d) The slope of the line would increase, decrease, and then become horizontal.
a) a horizontal line
300
What is Energy is the ability to do ________.
a) nothing
b) potential
c) inertia
d) work
d) work
300
What is The upward force of an objectfalling through the air is
a) inertia
b) air resistance
c) momentum
d) terminal velocity
b) air resistance
300
What is If gravity did NOT affect the path of a horizontally thrown ball, the ball would ____.
a) go straight up
b) fall straight down
c) follow a curved path
d) travel horizontally
d) travel horizontally
300
What is A horizontal line on a velocity/time graph shows ________ acceleration
a) zero
b) positive
c) changing
d) negative
a) zero
400
What is A car went 100 miles in 2 hours. What is the average speed of the car?
a) 50 km/hour
b) 200 miles/hour
c) 50 miles/hour
d) 100 km/hour
c) 50 miles/hour
400
What is A ball held at the top of a slide has ________________.
a) potential energy
b) kinetic energy
c) work
d) chemical energy
a) potential energy
400
What is The path of a projectile is
a) curved
b) always horizontal
c) always vertical
d) straight
a) curved
400
What is The statement "to every action there is an equal and opposite reaction" is ____.
a) The law of conservation of momentum
b) Newton's first law of motion
c) Newton's second law of motion
d) Newton's third law of motion
d) Newton's third law of motion
400
What is 3 m/s north is an example of a(n)
a) position
b) speed
c) velocity
d) acceleration
b) speed
500
What is What type of force happens when objects rub against each other?
a) magnetic force
b) contact force
c) gravitational force
d) frictional force
d) frictional force
500
What is _____________ is the tendency of an object to keep moving or stay at rest.
a) friction
b) force
c) inertia
d) gravity
c) inertia
500
What is The size of the gravitational forces between two objects depends on their
a) frictional forces
b) inertia
c) masses and distance between them
d) speed and direction
c) masses and distance between them
500
What is When a force is exerted on a box, an equal and opposite force is exerted by the box. These forces are called ____ forces.
a) action-reaction
b) centripetal
c) fricitonal
d) gravitational
a) action-reaction
500
What is If you ride your bike up a hill, then ride down the other side, your acceleration is
a) all negative
b) first positive, then negative
c) first negative, then positive
d) all positive