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WorksheetsAdel 3E science chapter #1
Total questions: 72
Worksheet time: 36mins
…………………is the change in the position of an object.
motion
speed
direction
position
If an object does not change how fast it moves, it has a .....................
variable speed
constant speed
An object's location !
position
speed
motion
direction
………………is the rate at which an object changes its position!
motion
direction
speed
position
If an object changes its speed as it moves, it has a ……………
constant speed
variable speed
speed is distance divided by time !
true
false
Which of the following is an example of an object moves at a variable speed ?
A plane
A roller coaster
A train
Describes how fast an object moves !
speed
motion
time
distance
Which of the following is an example of an object moves at a constant speed ?
A roller coaster
A plane flies steadily at 900 km/hr
A car moving in the traffic
A skater going up and down hill
Means the same as POSITION !!
direction
speed
motion
location
What always changes when an object is in motion ?
direction
speed
time
position
………………..is how fast or slow an object moves !
time
distance
direction
speed
the change in position !
speed
motion
direction
time
Motion is how fast an object changes its position .
true
false
Speed is time divided by distance .
true
false
A skater goes up and down hill moves at a constant speed !
TRUE
FALSE
A roller coaster is an example of an object moves at a variable speed.
true
false
An object moves at a constant speed means it changes its speed as it moves .
true
false
What do words such as behind, beside, above, and below describe about
an object?
direction
position
motion
distance
The position of an object depends on how a person looks at it .
true
false
Speed does not include an information about an object's direction.
true
false
variable speed Occurs when an object does not change how fast it moves.
true
false
· Variable Speed: Occurs when an object changes speed as it moves.
true
false
Describes both speed and direction !!
velocity
motion
distance
variable speed
Describes how fast an object is moving and in which direction !
speed
motion
position
velocity
A push or a pull !!!
motion
speed
force
velocity
A force can affect an object's position and direction of its motion !
true
false
An object's mass affects its motion .
true
false
light objects need more greater force to move !
true
false
Contact force means you do not have to touch the object you need to move !
true
false
A cart's wheels rub against the floor . this causes ..................
force
speed
position
friction
A contact force that opposes the motion of an object 1
friction
force
motion
velocity
Friction can cause a moving object to slow down or to stop!
true
false
Smooth surfaces produce less friction !
true
false
An object's motion depends on all the forces that act together !
true
false
Amount of force does not mean the strength of force !1!
true
false
Forces that work together and cause no change in motion !
contact force
strength of force
balanced forces
amount of force
Equal forces cancel each other !!!
true
false
Two players are pushing against each other with the same force . what will happen ?
they will move fast
they will not move
they will move in one direction
Balanced forces have no effect on an object's motion .
true
false
Unbalanced forces can cause an object to move and change speed and direction .
true
false
two teams are pulling a rope with unbalanced forces ! what will happen ?
the rope will move in the direction of the team pulling with greater force .
the rope will move in the direction of the team pulling with less force
the rope will not move
can push or pull an object with out touching it .
contact force
noncontact force
strength of force
balanced forces
Non contact force that can attract or pull on metal objects !
balanced forces
magnetism
motion
contact force
Can not be attracted by magnet !
wood
steel
iron
plastic
paper
An object with a greater mass requires less force to move it.
true
false
The amount of friction between two objects depends on
their surfaces.
true
false
Magnets work because they have magnetic fields around them.
true
false
A north pole of a magnet and a south pole of another magnet are near each other !!what do you think will happen ?
the north pole will attract the south pole of the other magnet .
they will push away from each other
they have no effect on each other
Unlike poles will attract ( North vs South).
true
false
Like poles will repel ( North vs North).
true
false
A noncontact force that pulls objects toward one another.
friction
gravity
force
motion
states that all objects are pulled toward one another by gravity !
strength of force
balanced force
law of gravity
friction
Gravity is a force that can be overcome.
true
false
It is easier to overcome gravity with a light object tan with a heavy object .
true
false
The pull of gravity on an object gives an object its ............................
mass
color
weight
shape
Your weight on moon is greater than yours on Earth .
true
false
gravity is greater on moon than on Earth .
true
false
When the pull of gravity is weaker, the object’s weight is less !
true
false
The pull of gravity is less the farther you are from the Earth’s center.
true
false
Objects with more matter have more mass.
true
false
the pull of gravity is greater on objects with less mass.
true
false
Your mass on Earth and on the moon is the same, but your weight is different.
true
false
Your weight on Earth and on the moon is the same, but your mass is different.
true
false
It is easier to carry on an object down stairs than up stairs , because .........................
going down stairs needs more force .
going up stairs needs less force
gravity makes it easier to go down stairs
gravity makes it easier to go up stairs .
A ball thrown on the moon would rise higher than a ball thrown on Earth , because ..............................
gravity on moon is greater than on Earth
mass of the ball is not the same on Earth and moon .
gravity on Earth is greater than on moon .
Which of the following would NOT affect the motion of an object ?
more friction
greater force
balanced forces
change in mass
Which will make a ball roll faster ?
increase the distance the ball rolls .
apply a greater force
increase the ball's mass
increase the ball's weight
What makes a thrown ball come back to ground !
friction
speed
velocity
gravity
What do words such as behind, beside, above describe about
an object?
direction
position
velocity
speed
A contact force .
gravity
friction
magnetism
A force that slows or stops motion!
gravity
magnet
friction
