What are the metric units for speed?

Which graph(s) illustrate an object at moving at constant speed?

A change in position.

Which graph(s) illustrate an object accelerating?

Which graph(s) illustrate an object moving away at constant speed?

The rate of velocity change over time

What are the units for acceleration?

Which of the following illustrates an object accelerating? Check all that apply.

What does the slope of a distance-time graph tell you about an objects motion?

The force due to gravity

The sum of all forces acting upon an object

Newton's first law of motion states that an object will resistance a change in its motion. i.e an object in motion will stay I motion until an outside force acts on it.

For every force there is an equal and opposite force

An object at rest stays at rest until an outside force acts on it.

A rocket accelerates upward by pushing gas molecules downward in the opposite direction

Twice as much force will accelerate an object twice as fast when mass is held constant.

If the mass of a cart doubles for a given force, what happens to the cart’s acceleration?

A 10 N and a 8 N force pull an object in opposite directions. The object has a mass of 10 kg. What is the acceleration of the object?

1000 N of force accelerates a motorcycle at 2 m/s² . What is the mass of the motorcycle?

A 300 kg mass is pushed with 100 N of force. What is the acceleration object?

Which of the above graphs represents Newton's 2nd law, stating that when a force increases, acceleration will also increase for given mass?

Which of the above graphs represents Newton's 2nd law, stating that when mass increases, acceleration will decrease?

Which of the above graphs does not represent Newton's 2nd law, F=ma? Check all that apply?

The rate (time) at which energy is transferred or used

If the velocity of an object doubles, its kinetic energy will______. Remember KE=mv²

If the height of an object is changed from 4 m to 2 m, what will happen to the PE of the object. Remember PE=mgh

What is the skiers potential energy at point b?

If the skier's has 98,000 J of potential energy at point a, how much KE would he have at point b, half way down the hill?

Two bricklayers are trying to lift two separate loads of bricks with the same mass to the top of a building using a pulley system. Bricklayer one is able to lift the load twice as fast as bricklayer two. Which person did more work?

Two bricklayers are trying to lift two separate loads of bricks with the same mass to the top of a building using a pulley system. Bricklayer one is able to lift the load twice as fast as bricklayer two. Which person used more power?

At which point is the rollercoaster moving the fastest?

At which point does PE = KE?

The change in momentum of an object is equal to

The product of an objects mass and velocity

The type of collision where two objects stick to each other

When the velocity of an object is reduced by half, its momentum will

A shotgun recoils from firing a bullet. Why is the velocity of the bullet large (fast) in comparison to the shotgun?

After being dropped from the top of a building, a 2 kg watermelon smashes into the ground with a change in velocity of 10 m/s. What is the change in momentum of the watermelon?

After being dropped from the top of a building, a 2 kg watermelon smashes into the ground with a change in velocity of 10 m/s. What is the impulse on the watermelon?

A car with a mass of 1000 kg moves along the ice with a constant velocity of 10.0 m/s. What is the car’s momentum?

A bowling ball collides with a bowling pin, what happens to the momentum of the ball?

Two squirrels are running around a tree at 1.5 m/s. One of the squirrels has twice the mass of the other squirrel. How does the momentum of the heavier squirrel compare to the lighter squirrel?

A car at rest is hit by another car with 10000 Kg m/s of momentum traveling at 5 m/s. What is the mass of the car before the collision?

A car slams on its breaks and an unsecured ladder sitting on top of the car goes flying off, still moving at the same speed as the car before it stopped.