MOTION
PHYSICS VOCAB.
ENERGY
NEWTONIAN
SPEED IT
100

To calculate the average speed, you must

a) add distance and time

b) subtract the total amount of distance and the total amount of time

c) add speed plus direction

d) divide the total amount of distance by the total amount of time

d) divide the total amount of distance by the total amount of time
100

Which of these describes an object's velocity at the beginning of a time period.

a) Final Velocity

b) Speed

c) Initial Velocity

d) Positive velocity

c) Initial Velocity
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

a) reference point
100

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
100

Inertia varies depending on

a) velocity

b) motion

c) mass

d) force

c) mass
200

What would no motion look like on a displacement-time graph?

a) a horizontal line

b) the slope of the line increasing steadily

c) the slope of the line decreasing steadily

d) the line of the graph would increase and decrease.

a) a horizontal line
200

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

When you kick a soccer ball it gains__________ energy.

a) kinetic

b) potential

c) mechanical

d) chemical

a) kinetic
200

If the resultant force on an object in motion is zero, the object will

a) Accelerate

b) Decelerate

c) Move at a steady velocity

d) Stop instantly

c) Move at a steady velocity
200

Which of these is most likely to be the speed of a cyclist?

a) 1500 cm/s

b) 2 m/s

c) 25 km/h

d) 50 mph

c) 25 km/h
300

What does constant speed look like on a displacement-time graph?

a) a straight, diagonal line

b) A curved line..

c) A vertical line.

d) A horizontal line.

a) a straight, diagonal line
300

Energy is the ability to do ________.

a) nothing

b) potential

c) inertia

d) work

d) work
300

The upward force of an object falling through the air is...

a) inertia

b) air resistance

c) momentum

d) terminal velocity

b) air resistance
300

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

A curved line on a velocity/time graph shows ________ acceleration

a) zero

b) positive

c) changing

d) negative

c) changing
400

A car went 100 km in 2 hours. What was the average speed of the car in m/s?

a) 50 m/s

b) 27.8 m/s

c) 13.9 m/s

d) 833.33 m/s

c) 13.9 m/s
400

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

The path of a projectile is...

a) curved

b) always horizontal

c) always vertical

d) straight

a) curved
400

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

3 m/s North can be used to describe an object's...

a) position

b) speed

c) velocity

d) acceleration

c) velocity
500

What are the four equations of motion?

v = u + at s = ut + 1/2 at^2 s = (u+v)/2 x t v^2 = u^2 + 2as
500

Which of these is true about an inelastic collision?

a) Momentum and kinetic energy are conserved.

b) Momentum and kinetic energy are not conserved

c) Momentum is conserved, kinetic energy is not conserved

d) Momentum is not conserved, kinetic energy is

c) Momentum is conserved, kinetic energy is not conserved
500

How is momentum conserved when a rock falls off a cliff and hits the ground?

The rock gains momentum and kinetic energy because of the work done by its weight and the Earth gains and equal amount of momentum towards the rock. When the rock hits the ground its momentum becomes zero, at the same instant the Earth stops moving upward, conserving momentum.
500

When a force is exerted on the floor, an equal and opposite force is exerted by the floor. This force is called the ____ force.

a) contact

b) reactional

c) frictional

d) gravitational

a) contact
500

If you ride your bike up a hill, then ride down the same side, your acceleration is

a) all negative

b) first positive, then negative

c) first negative, then positive

d) all positive

b) first positive, then negative