Motion is the process of change in an objects ______________.
Distance
Movement
Position
Speed
All matter is made up _________________.
small particles with positive, negative, or neutral charge.
big particles everyone can see
Two children are holding one end of a rope each. They pull on the rope in opposite directions. The rope is not moving. What conclusion can be made about the forces that the children apply on the rope?
Forces are balanced. Children have same amount of strength.
A magnet _________________ plastic bag.
does nothing to a
repels
atracks
_____________ have a negative charge.
electrons
protons
neutrons
A child pushes a box around the room. (This is an example of ______________.)
Chemical energy
Unbalanced forces
Balanced forces
Potential energy
Jacob is walking a small dog and a big dog. Suddenly, both dogs pull on opposite directions. Which direction will Jacob be pulled?
Towards the bigger dog
Towards the dog that applies more force
In the opposite direction of the dog that applies more force
Towards the smaller dog
An object with a force that can attract or repel certain materials.
magnetic field
magnetism
magnet
pole
__________________ is necessary to move a car compared with a bicycle.
Less force
No force
More force
The same force
Which would be attracted to a magnet?
an ice cube
an iron nail
a wax crayon
a copper penny
A material that is often affected by the push and pull of magnets.
magnet
pole
magnetism
metal
Objects can only move on a straight line.
True
False
_____________ have a neutral charge.
electrons
protons
neutrons
Which of the following are ways to measure movement?
Direction, distance, speed
Direction, time, prediction
Prediction, time, speed
Distance, time, speed
Some kids played racing three toy cars. Each one started at the same time. The following drawing shows the end of the race.
Car C
Car A
Car B
All had same speed.
_____________ have a positive charge.
protons
neutrons
electrons
_________________ forces act on an unmoving object.
Balanced
Unbalanced
A positive charge will attract _____________________charge.
a neutral charge
a negative charge
another positive charge
Which pair of balloons will repel each other?
A
B
C
Hitting a nail with a hammer is a _____________.
Push
Crash
Strike
Pull
Electricity can ___________ trough a wire and make things work.
flow
fly
stand
Balanced forces cancel each other out when acting on an object.
True
False
A magnet _________________ paper clips.
attracks
repels
Electricity is an ______________ force.
visible
invisible
Which is an example of static electricity in nature?
rain
lightning
volcano
waterfall
Which causes a shock when a person touches a doorknob?
insulated wires
static electricity
a broken circuit
electric current
One of two ends of a magnet.
magnetism
magnet
magnetic field
pole
A force that happens when an object rubs another object is called ____________
Friction
Gravity
Magnetism
A north pole will attract another magnet's _______________ pole.
south
north
The forces that make an object move are called __________________ forces.
Unbalanced
Balanced
A force is a ___________________.
Push or a pull
Pushing
A pull between two objects
The amount of gravity between two objects
A region of magnetic force around a magnet
magnetism
pole
magnet
magnetic field
Cooper designs and builds a toy car and is about to test the speed of the car bay pushing it down a ramp. What tools should he use to measure the speed of the toy car?
A measuring cup and a scale
A ruler and a scale
A scale and a stopwatch
A stopwatch and a ruler
Same charges _________________.
repel
attract
Opposites ________________.
attract
An object will have a change in motion when the forces acting on it are __________________.
Not equal
Equal
the ability of an object to push or pull on another object that has the magnetic property.
magnetism
magnetic field
magnet
pole