Category 1
What is motion?
What is a force?
A push or a pull
Does a baseball or a golf ball have more mass?
Baseball
True or false: Force is needed to change the direction of an object's motion
True
_____ desribes how fast something moves
speed
What would happen if there were no gravity on Earth?
Everything would float into outer space.
How do you predict the pattern of motion of an object?
Observe how the object moves
What is a pattern?
Something that repeats
Cindy is trying to push a box full of toys. Why is the box not moving?
She is not using a strong enough force to move the box.
True or False: Objects with less mass need more force to move
False
How do we know when something is in motion?
Its location or position changes
When there is more force on one side of an object and the object moves the forces are considered _________
unbalanced
True or false:
Rolling a ball across an area with high friction will allow it to speed up
False
Which has more friction- grass or a wood floor?
Grass
Which has less friction? Carpet or ice?
Ice
Pushing with a strong force will cause objects to move slower or faster?
It will cause objects to move faster
When an unbalanced force acts upon an object, the object will move in which direction?
The direction of the stronger force
What two measurments do you need to know the speed of an object
Time and distance
Two teams are playing kickball. Tommy kicks the ball where it rolls far into the outfield. Before anyone can get it, the ball stops. What made it stop?
Friction
True or false?
Balanced forces use different amount of forces to make an object move
False
When forces push or pull in different directions with the same amount of strength, the forces are said to be ____________.
Equal or balanced
If a force is applied in the same direction of an objects motion, what will happen to the objects speed?
A bird is flying from left to right past your window. The window is considered the ________
frame of reference
A baseball player hits a pop-up ball. The ball soars high into the air but eventually falls. Why?
Because of Gravity
When all forces acting on an object are the same and the object does not move, the forces are _____
Balanced