Grade 10 (Alberta) Physics Problems

Front

Kevin throws a ball 100m across the EW Pratt football field. If the ball was in the air for 4sec before it hit the ground, what was the average speed of the ball?

Back

25.0 m/s

Front

What does not reveal the direction of motion?

Back

Speed. To describe how fast an object moves and the direction of its motion, we need the vector concept of velocity.

Front

Energy is frequently defined as the ability to do work.

Back

true

Front

The first law of thermodynamics states that

Back

energy is always conserved.

Front

Lashanda pushes Anna with 1000N of force, causing Anna to fly backwards a distance of 5m. How much work did Lashanda do?

Back

5000J

Front

Carter and Josh race their Lambos. Carter: 55m/s in 10 sec. Josh: 65m/s in 12 sec. Who won the Dogecoin?

Back

Carter

Front

Potential energy of a 2kg ball dropped from a height of 15m.

Back

294.3J

Front

What speed will the 2kg ball dropped from a 15m roof be travelling at just before it hits the ground? (hint... Ep[top]=Ek[bottom])

Back

Front

Chad drops a 150g chocolate bar from a height of 1km. How much energy will it release when it hits the ground?

Back

1472 Joules

Front

Which situation does NOT represent a type of potential energy building up? Options: Thomas compresses a giant spring to launch himself to the moon; Cayden rolls a boulder up a tall hill and leaves it on the edge of a cliff, 100 feet above the ground; Gracie dams up the stream by her house and watches as the water gathers higher and higher behind the dam; Mr. Barry crashes his helicopter into the ground, causing a huge explosion.

Back

Mr. Barry crashes his helicopter into the ground, causing a huge explosion.