Vocabulary
Motion
Forces
Forces and Motion
Net Force
100
A push or pull on something.
What is force?
100
The tendency of an object to resist a change in motion.
What is intertia?
100
On a distnace time graph, a horizontal line means the object is _______
Stopped, not motion
100
A car travels 60 miles per hour north. What makes this velocity instead of speed?
Answer: What is the direction (north)?
100
What is 700 N?
200
Force that acts on an object when it rubs against another object or material.
What is friction?
200
Which will experience less acceleration when the same force is applied, a 100lb object or a 25lb object?
What is an 100lb object?
200
On a distance-time graph, a steep line means the object is moving at this type of speed.
What is a faster speed?
200
Which of the following forces slows objects down?
A. Friction B. Gravitational C. Magnetic D. Unbalanced
What is Friction
200
You and your brother are pushing a car with a dead battery with forces of 20 N and 25 N in the same direction. What is the net force applied on the car?
What is 45 N?
300
A feather and a baseball are dropped at the same time from the same height. The baseball hits the ground first.
What explains why the feather falls more slowly, even though gravity pulls on both objects equally?
What is air resistance?
300
A baseball accelerates faster than a bowling ball when the same amount of force is applied. Which Newton’s Law explains this relationship?
Newtons 2nd Law
300
Athletes wear cleats to increase this force between their shoes and the ground.
What is friction?
300
Newtons 1st law is also known as the law of __________
INERTIA
300
A baby deer is learning how to run for the first time. The baby deer pushes forward with a force of 50 N to the left. Its mother gently helps push it with an additional force of 25 N to the left.
What is 75 N to the left?
400
Mass times acceleration
What is force?
400
A car travels 150 miles at 50 mph. This is the travel time.
What is 3 hours?
400
Astronauts weigh less on the Moon because the Moon has less of this force than Earth.
What is gravity?
400
A runner travels 400 meters in 50 seconds. Find the speed
What is 8 m/s?
400
A brother is pulling a toy from his sister with a force of 6 N. The sister is pulling back with a force of 8 N.
Who gets the toy?
What is the net force?
What is the sister and 2 N?
500
A student pushes a box to the right with a force of 60 N. At the same time, friction pushes the box to the left with a force of 60 N.
What type of forces are acting on the box, and what will happen to its motion?
What is balanced force?
500
A heavy shopping cart is harder to start moving than an empty shopping cart. Which Newton’s Law explains this?
Newtons 1st Law
500
A cheetah runs 360 meters in 12 seconds while chasing its prey.
What is the cheetah’s speed?
30 m/s
500
Seatbelts help protect passengers because of this property of motion.
What is inertia?
500
What letter is used as the unit of measurement when calculating net force?
What is the letter "N"?