Force & Motion
A push or pull and can make an object stop, speed up, slow down, or change direction.
What is a force
a student rolls a marble, basketball, beach ball, and table tennis ball (ping pong ball) on the same surface and at the same speed. Which has the greatest kinetic energy?
What is a basketball
Amy swam 15 m in 3 sec, how fast did she swim?
What is 5 m/sec.
A ball in the grass being kicked by a girl is an
What is an unbalanced force (it is moving)
The reason we are able to walk on the Earth
What is gravity
Adding or subtracting individual forces gives a combined force called
What is a net force
A blue 10 lb bowling ball is pushed with 25 Newton's of force and a green 10 lb bowling ball is pushed with 20 Newton's of force. Which ball will go farther?
What is the blue bowling ball.
Theresa swam 50 m in 2 sec. How fast did she swim?
What is 25 m/sec (this is impossible but is still the right answer according to the math)
A book resting on a desk is an example of
What is a balanced force (it is still)
A force that attracts a body toward the center of the earth, or toward any other physical body having mass.
What is gravity.
If gravity suddenly stopped, Earth would move
What is in a straight line.
A swimmer is perched on the end of the diving board waiting to dive. What kind of energy does he have?
What is potential energy.
If Amy and Theresa were swimming against each other who would win?
Who is Theresa
A force that sets an object into motion is
What is an unbalanced force.
A person drops a ball, and it falls to the ground is an example of
What is gravity
A force that works against motion
What is friction
A bird is in the sky flying across a field, what kind of energy does it have?
What is both potential and kinetic energy.
If Adam can swim 10 m in 5 sec, how fast does he swim?
What is 2m/sec.
An object at rest is a
What is a balanced force
Something that makes an object start moving, stop moving, speed up, or slow down is
What is a force.
What changes when the pull of gravity changes
What is weight.
A 25lb rock sits on the ground, and a 35 lb rock sits on top of the hill. Which has more kinetic energy?
What is neither, both rocks are still and have no kinetic energy.
Who is Adam.
A tape measure, ruler, dropper, and spring scale are on the International Space Station, which measurement tool would give a different result than here on Earth?
What is a spring scale.
Forces cause objects to
What is start moving, change direction, or stop moving?