Physics Test Review

Physics Test Review

ENERGY

• Kinetic Energy = movement

• Potential Energy = stored

• Energy can be TRANSFERED from one form to another but can never be created or destroyed.

Multiple Choice

At which point does the ball has the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

Multiple Choice

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

Multiple Choice

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

Multiple Choice

Which is the best example that something has kinetic energy?

• a. a car parked on a steep hill 
• b. a tennis ball rolling across the court
• c. a picture hanging on the wall 
• d. a piece of coal before it's burned 

FORCE

• force = push or pull

• friction = force that opposes motion

• balanced forces = no movement

• unbalanced forces = movement

Multiple Choice

What does friction produce?

• light
• sound
• heat
• gravity

Multiple Choice

Calculate the net force.

• 5 N
• 10 N
• 45 N
• 500 N

Multiple Choice

Which one is balanced?

• Top
• Bottom
• Both
• Cannot be determined

Multiple Choice

If there are two forces going in the same direction how would you find the net force?

• Subtract
• Add
• Neither
• Multiply

Multiple Choice

What is the net force?

• 17 N Right

• 3 N Right

• 3 N Left

• 17 N Left

MOTION

• acceleration = object speeding up, slowing down, or changing direction

• velocity = speed and direction

• speed = distance/time

Multiple Choice

Acceleration is

• increasing speed

• decreasing speed

• changing direction

• all of the above

Multiple Choice

The tendency of objects to resist a change in motion is called:

• Friction

• Inertia

• Gravity

• Velocity

Multiple Choice

What happened during C to D point?

• not moving

• increasing speed at a constant rate

• moving at a constant speed

• moving at 0 m/s² acceleration

Multiple Choice

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Multiple Choice

Which type of force(s) will cause a change in an object's motion?

• gravity

• balanced forces

• unbalanced force

• net force

Multiple Choice

What is the line on this graph showing?

• moving away from starting point at a constant speed

• moving back towards the starting point at a constant speed

• acceleration (getting faster)

• deceleration (getting slower)

Multiple Choice

You hit a wall with a stick. The equal but opposite reaction is _____

• the wall pushes against you

• the stick pushes against you

• you push against the stick

• the wall pushes against the stick

Gravity

effected by MASS and DISTANCE

Magnets

opposite poles attract

like poles repel

magnets attract some metals

Electricity

electrons move through a wire

conductors like copper are good for making wires because they have a lot of lose electrons

a circut must be a closed loop so the electrons can flow

Multiple Choice

What items will a magnet attract?

• Beach ball, glass
• nails, paper clip
• book, paper
• golf ball, glue

Multiple Choice

Electricity that flows in a closed path is called a

• path

• current

• circuit

Multiple Choice

The flow of electricity requires a

• complete path
• incomplete path
• insulated current

Multiple Choice

Gravity on Mars’ surface is much lower than it is here on Earth. This is because the mass of mars is ______ than Earth.

• less

• more

• the same

Multiple Choice

An _______ force must act on an object for it to CHANGE it's motion

• balanced
• unbalanced
• gravitational
• electrical

Simple Machines

Make work easier by giving mechanical advantage

Multiple Choice

The greatest amount of force is required to move the metal block up which inclined plane?

• A
• B
• C
• D

Multiple Choice

Which of these is an example of a wedge?

• skateboard
• broom
• stairs
• butter knife

Multiple Choice

Which is not a type of simple machine?

• spring
• screw
• pulley
• wedge