Motion
Motion
Forces
Newton's Laws
Newton's laws
100

In absence of acceleration, a moving object has a constant this.

What is speed

100
---------------- is the speed of an object and the direction of its motion?
What is Velocity
100

A parachute works to do this so that you don't crash and get hurt.

What is Increase air resistance

100
A push or pull on an object is known as?
What is a force
100
If the net force of an object is not zero it is?
What is an unbalanced force
200
What is the formula for calculating speed?
What is speed equals distance/time
200

True or False: Forces are vectors because they have both size (magnitude) an direction

What is True

200
The tendency to resist change in motion is?
What is Inertia
200
The combination of all forces act on an object is?
What is a net force
200
Two or more forces acting on an object are --------------- if the two cancel each other out?
What is Balanced force
300
If Jake walks 40m in in 15 seconds what is his speed?
What is 2.66m/s
300
A line on a distance time graph becomes steeper as an object's speed does what?
What is increases
300

The force that is applied to an object by a person is called this.

What is Applied Force.

300
Describe Newtons first law?
What is an oject at rest will remain at rest, and an object in motion will remain in motion unless acted upon by an outside force.
300
Describe Newton's second Law?
What is force equals mass times acceleration. The force needed to change the motion of an object depends on its mass.
400
If Bob runs a 100m dash in 13 seconds what is his speed?
What is 7.69m/s
400
When an object changes its motion it is?
What is accelerating
400

What is the force that is pushing up on a book that is sitting on a desk?

What is Normal Force.

400
what is the force that resists sliding detween two touching surfaces?
What is friction
400
Forces always act in?
What is equal but opposite pairs
500
I was heading North on HWY 169 om my way to Ely at a rate of 65mph. What was my velocity?
What is 65mph north
500

When the velocity of an object decreases (slows down) this is called?

What is Deceleration

500

When playing tug of war, the main force acting along the rope is?

What is Tension Force

500
Weight is?
What is the size of gravitational force exerted on an object
500
True or False: In a collision, a person who slows down gradually over a greater distance will experience less force than stopping suddenly.

What is True