Physics In Real Life
This force that pulls you toward the ground and keeps you from floating away.
What is gravity?
The speedometer in a car measures this
What is speed?
A push or a pull is known as this.
What is a force?
This negatively charged particle is found outside the nucleus of an atom.
What is an electron?
You throw a ball straight upward. Eventually, it will do this.
What is fall back down?
When a car stops suddenly, your body wants to keep moving forward because of this property of matter.
What is Inertia?
A car travels 100 miles in 2 hours. What is its average speed?
What is 50 mph?
The metric/SI unit used to measure force is named after this famous scientist.
Who is Isaac Newton?
Protons have this type of electric charge.
What is positive?
You're standing on a skateboard and throw a heavy ball forward. Your skateboard will move in this direction.
What is backward?
A seatbelt protects you because your body tends to keep moving forward when the car stops. This is an example of which of Newton's Laws.
What is Newton's First Law?
Speed that includes a direction, such as "20 m/s north," is called this.
What is velocity?
Friction usually acts in this direction compared with an object's motion.
What is the opposite direction?
Opposite electric charges do this to one another.
What is attract?
A heavy truck and a small car collide. Which vehicle experiences the greater force during the collision?
Neither — they experience equal forces.
You push backwards on the ground when you walk. The ground pushes you forward. This is which of Newton's Law?
What is Newton's Third Law?
Going from 10 mph to 50 mph is an example of this.
What is acceleration?
If two people pull on opposite ends of a rope with equal force, the net force on the rope is this.
What is zero?
Like electric charges do this to one another.
What is repel?
At the very top of its path, a ball thrown straight upward has an instantaneous velocity of this.
What is 0 m/s?
A bowling ball and a tennis ball are dropped from the same height in a vacuum. Which hits the ground first?
They hit at the same time.
A car travels around a circular track at a constant speed. Is the car accelerating?
Yes, because its direction is changing.
If the forces acting on an object are balanced, does that mean the object must be sitting still?
No. It could also move at a constant velocity.
Of protons, neutrons, and electrons, this particle has by far the smallest mass.
What is an electron?
At that same instant at the top of its path, is the ball's acceleration zero?
No — it is still accelerating downward due to gravity.